#Polyurethane Foam Panels

[elastofoam-blog]

low pressure PU foaming machine india

[thermasafe]

Enhance Comfort and Reduce Energy Consumption with PUR Insulation

Upgrade your working environment today. Choose PUR insulation and experience the difference it can make in enhancing comfort and reducing energy consumption. Contact us at Thermasafe to learn more about our PUR insulation solutions and how they can transform your spaces into havens of comfort and efficiency. Visit https://thermasafe.ae/pur-insulation-uae/

[leibal]

Patch is a minimalist sofa system designed by Chris Martin of Stockholm-based brand Massproductions. Patch stands out with its unique lozenge-shaped backrest panels and a construction method that minimizes the use of polyurethane foam

[kriti2005]

"Reduce Noise, Enhance Comfort with Acoustic PU Foam by Acoustic Nest"

Cutting-edge materials designed to absorb sound waves, thereby eliminating unwanted noise, include acoustic PU foam. Given the arrangement of its individual, open-cell polyurethanes, it captures and dissipates sound energy, making it a very efficient tool for quietening personal spaces. From offices to studios and home theaters, acoustic PU foam is the best sound absorption for anywhere you need it now.

At Acoustic Nest, we have premium acoustic PU foam recommended for all acoustic challenges. Lightweight, durable, and easy to install, they cater to every needs and every place possible. This panel is not only capable of reducing echoes and high reverb times but also improving sound clarity, so it can be best to optimize both acoustics and aesthetics.

Bringing in Acoustic PU foam from Acoustic Nest makes your space into a haven of peace—where innovation meets silence.

[engko1]

ENGKO: Revolutionizing Manufacturing with High-Quality PUF Panels in India

In the dynamic landscape of construction, innovation and efficiency are paramount. ENGKO, a pioneering name in the industry, stands out as a leading manufacturer of Polyurethane Foam (PUF) panels in India. With a commitment to quality, sustainability, and cutting-edge technology, ENGKO has emerged as a game-changer in prefab construction.

The Power of PUF Panels

Polyurethane Foam (PUF) panels are at the core of ENGKO Engineering Company offerings, and for good reason. These panels are renowned for their outstanding thermal insulation properties, durability, and versatility. As a leading manufacturer, ENGKO ensures that its PUF panels adhere to the highest industry standards, providing an optimal solution for diverse construction needs.

Energy Efficiency and Sustainability

One of the key advantages of ENGKO PUF panels is their exceptional energy efficiency. These panels act as a formidable barrier against heat transfer, significantly reducing the need for artificial heating or cooling within a structure. This not only contributes to lower energy consumption but also aligns with global sustainability goals. ENGKO is committed to eco-friendly practices, and their PUF panels play a crucial role in creating energy-efficient and environmentally conscious buildings.

Customization for Varied Applications

ENGKO understands that each construction project is unique, with distinct requirements and challenges. The company offers a range of PUF panels that can be customized to suit specific applications. Whether it's for industrial buildings, cold storage, clean rooms, or residential structures, ENGKO PUF panels are designed to meet the diverse needs of the construction industry.

Rapid and Cost-effective Construction

Prefabricated construction, powered by PUF panels, is synonymous with speed and cost-effectiveness. EPACK Engineering Company's panels are manufactured precisely and efficiently, allowing for faster construction timelines. This not only reduces overall project costs but also minimizes the environmental impact associated with traditional construction methods.

Quality Assurance and Certifications

ENGKO places a premium on quality assurance. The company adheres to stringent quality control measures at every stage of production, ensuring that each PUF panel meets the highest durability and performance standards. Additionally, the panels are backed by relevant certifications, providing clients with the assurance that they are investing in a reliable and compliant construction solution.

Contact Detail

ENGKO Engineering Company Add- DB Plaza, RDC, Near Yes Bank, Ghaziabad INDIA Phone no- 9319777949 Email: info@engko.in Website- https://www.engko.co.in

[myelectricaura]

Flat Roofing Contractor Services

Are you tired of endlessly searching for a reliable contractor to fix your leaky flat roof? Do you want to avoid the hassle and stress that come with poor workmanship and high repair costs? Look no further! Our flat roofing contractor services are here to take the burden off your shoulders. We offer top-notch craftsmanship, excellent customer service, and competitive pricing. So sit back, relax, and let us handle all your roofing needs!

What is a flat roof?

A flat roof is a type of roofing system that has a uniform and level surface. The term “flat” is used in reference to the horizontal plane rather than the sloped or pitched roofs commonly seen on residential and commercial buildings. While most flat roofs are indeed flat, there is usually a slight gradient or pitch to the surface in order for water to drain off.

What are the benefits of a flat roof?

A flat roof has a number of benefits that make it an attractive option for many homeowners and businesses. For one, flat roofs are much easier to maintain than pitched roofs. They don't require as much regular upkeep and can last for decades with proper care. Flat roofs also provide a great deal of usable space on top of the building that can be utilized for storage, solar panels, or even outdoor entertaining areas. Additionally, flat roofs tend to be more energy-efficient than pitched roofs since they reflect heat better in the summer and retain heat in the winter.

What are the different types of flat roofs?

There are four main types of flat roofs: built-up roofing, single-ply membrane roofing, spray foam roofing, and metal roofing. Built-Up Roofing: Built-up roofing is one of the most common types of flat roofs. It is made up of multiple layers of tar and gravel that are applied over a base layer of felt or fabric. This type of roofing is very durable and can last for 20 years or more with proper maintenance. Single-Ply Membrane Roofing: Single-ply membrane roofing is a newer type of flat roof that has become increasingly popular in recent years. It consists of a single layer of synthetic material (usually PVC or TPO) that is applied directly to the deck. This type of roofing is very easy to install and repair, and it can last for 20 years or more with proper maintenance. Spray Foam Roofing: Spray foam roofing is another newer type of flat roof that has gained popularity in recent years. It consists of spraying a layer of polyurethane foam directly onto the deck. This type of roofing provides excellent insulation and can last for 20 years or more with proper maintenance. Metal Roofing: Metal roofing is another option for flat roofs. Metal roofs are made from steel, aluminum, or copper and can last for 50 years or more with proper maintenance.

How to choose a flat roofing contractor

When it comes to choosing a flat roofing contractor, there are a few things you'll want to keep in mind. First, you'll want to make sure that the contractor is licensed and insured. This will protect you in case of any damages that may occur during the roofing process. Secondly, you'll want to ask for references from previous clients. This will give you an idea of the quality of work that the contractor is capable of. Finally, you'll want to get a written estimate from the contractor before starting any work. This will help ensure that there are no hidden costs or surprises down the line. By following these simple tips, you can be sure that you'll find a qualified and reputable flat roofing contractor to take care of your roofing needs.

How to care for your flat roof

Assuming you have a flat roof on your home, here are some tips on how to take care of it: -check the roof regularly for any debris or leaves that may have accumulated -if there is any standing water on the roof, be sure to clean it up as soon as possible as this can lead to mold or mildew growth -keep an eye out for any cracks or holes in the roof and repair them as soon as possible -have a professional roofing contractor inspect and clean your roof at least once a year

Conclusion

Flat roofs are a great choice for homeowners looking to save money on their roofing costs. With the right flat roofing contractor services, you can get quality workmanship that will last for years and keep your property looking its best. If you're in need of an experienced roofer to install or repair your flat roof, make sure to do some research and find a reputable professional who can provide reliable services at an affordable price.

Toronto Flat Roofing Services | The Roof Technician

[snkrcollctn]

Delivering a modern take on the legacy silhouette originally released in 1986 is the Union LA x Air Jordan 2 Retro SP 'Grey Fog.' Chris Gibbs and the Union crew give the sneaker a pale blue textile upper with tonal suede construction on the mudguard and quarter panel with perforated detailing that reveals a bright blue underlay that reappears on the sneaker's molded eyelets. A yellow 'UN/LA' tag is on the lateral side and a woven tag looped over the collar displays a retro Wings logo, while an oversized Jumpman label is on the exposed foam tongue. On the bottom is a blue-tinged polyurethane midsole with encapsulated Air-sole cushioning. The Union x Jordan 2 'Grey Fog' will drop on April 15, 2022

[modularcleanroompanelsluckydeep]

Understanding Fire-Rated Clean Room Doors and Their Benefits

Clean room doors play a crucial role in maintaining the integrity and functionality of controlled environments. Among the various types available, fire-rated clean room doors offer enhanced safety and durability, making them indispensable for industries like pharmaceuticals, electronics, and healthcare. Companies such as Lucky Deep Clean Room Doors have set benchmarks in manufacturing high-quality clean room doors tailored to meet the stringent demands of modern industries.

What Are Fire-Rated Clean Room Doors?

Fire-rated clean room doors are designed to resist fire and prevent its spread for a specified period, ensuring the safety of personnel and equipment. Constructed with materials that offer excellent insulation and structural integrity, these doors are an essential feature in clean rooms where safety and hygiene are paramount.

Key Features of Fire-Rated Clean Room Doors

1. Double-Skin Door ConstructionFire-rated clean room doors typically feature a double-skin design, with or without view panels. These doors are constructed using modular panel techniques for a seamless and sturdy finish.

2. High-Quality MaterialsThe material of construction includes Galvanized Plain Steel (GPSP) sheets, which are known for their strength and corrosion resistance. The thickness varies based on the application:

GPSP GI Sheet: 0.8 mm for standard doors.

GPSP GI Sheet: 1.2 mm for fire-rated doors.

Frame thickness: 1.6 mm for fire-rated applications.

3. Enhanced Shutter DurabilityThe shutters are available in thicknesses of 42 mm, 44 mm, or 46 mm, ensuring robust performance and thermal insulation.

4. Durable Coating and FinishesTo ensure longevity and aesthetics, fire-rated clean room doors are finished with either powder coating or stainless steel. The powder coating, with a thickness of 60-80 microns, provides excellent resistance to corrosion and wear.

Customizable Sizes

Fire-rated clean room doors are available in various sizes to suit specific clean room requirements:

Thickness Options: 50 mm, 80 mm, 100 mm, and 150 mm.

Width Options: 750 mm, 900 mm, 1000 mm, 1200 mm, 1500 mm, 1800 mm, 2000 mm, and 2200 mm.

This flexibility ensures that these doors can seamlessly integrate into diverse setups.

Advanced Accessories

Fire-rated clean room doors come equipped with high-quality accessories to enhance functionality and safety, including:

Hinges: Stainless steel, 3-4 per door for durability.

Handles: Stainless steel ‘D’ type handles, 20 mm diameter, 300 mm long.

Push Plates: Stainless steel push plates measuring 125 x 300 mm.

Door Closures: Dorma make door closures (TS-68 standard arm).

View Panels: Safety glass panels, 6 mm thick, for visibility without compromising cleanliness.

Panic Bars: For emergency exit doors.

Automatic Door Bottom Seals: Ensure airtight sealing at the bottom.

Interlocking Provisions: Enhance security and reduce contamination risks.

Kick Plates: Stainless steel kick plates, 300 mm in height, for added protection.

Insulation and Filler Materials

The interior of fire-rated clean room doors is filled with high-performance materials to enhance insulation and safety. Common fillers include:

PUF (Polyurethane Foam): Density of 40±2 kg/m³ for thermal insulation.

PIR (Polyisocyanurate Foam): Density of 48±2 kg/m³, offering fire resistance and structural stability.

ROCKWOOL (Mineral Wool): Density of 96±2 kg/m³, known for its excellent fire-resistant properties.

Benefits of Fire-Rated Clean Room Doors

Enhanced Safety: Fire-rated doors contain and slow the spread of fire, providing valuable time for evacuation and minimizing damage.

Durability: High-quality materials and finishes ensure long-lasting performance, even in demanding environments.

Compliance: Meet strict safety and hygiene standards required in industries like pharmaceuticals and healthcare.

Customizability: A wide range of sizes and accessories makes these doors adaptable to specific operational needs.

Energy Efficiency: Insulation materials like PUF and ROCKWOOL improve thermal performance, reducing energy consumption.

Conclusion

Fire-rated clean room doors, like those offered by Lucky Deep Clean Room Doors, combine safety, functionality, and durability. Their advanced construction, customizable options, and high-quality accessories make them a reliable choice for industries where safety and cleanliness are non-negotiable. Investing in these doors ensures a safer, more efficient working environment while maintaining compliance with industry standards.

[elastofoam-blog]

polyurethane foam toys manufatcutrers india

[thermasafe]

Leading Provider of High-Quality PUR Insulation Solutions in the UAE

Thermasafe's PUR insulation is designed to provide optimal insulation properties, effectively minimizing heat transfer and reducing energy consumption in various industrial settings. Visitors to the website can explore the different types of PUR insulation available.

[ecotonesystems]

Ecotone Systems: Leading Manufacturer of Acoustic Wedge Foam Panels in India

Ecotone Systems uses premium-grade polyurethane foam to manufacture their acoustic wedge panels. This ensures durability, fire resistance, and superior sound absorption.

[dengaragedoors]

Why Garage Door Insulation Matters: A Complete Guide for Homeowners

When it comes to home improvements, many homeowners overlook the importance of garage door insulation. However, insulating your garage door offers significant benefits, from energy savings to enhanced comfort and even noise reduction. This guide will walk you through the benefits of garage door insulation and the various options available to help you make an informed decision for your home.

Benefits of Garage Door Insulation

Energy Efficiency

One of the most compelling reasons to insulate your garage door is the improvement in energy efficiency. Uninsulated garage doors allow heat to escape during winter and let cold air enter during summer, making your home’s heating and cooling systems work harder.

Temperature Regulation

Insulating your garage door helps maintain a consistent temperature in the garage itself. This is especially important if you use your garage as a workspace, home gym, or storage area for temperature-sensitive items. During winter, an insulated garage stays warmer, making it more comfortable to spend time in. In the summer, insulation helps keep the garage cooler, reducing the need for fans or air conditioning and protecting items stored in the garage from extreme temperatures.

Noise Reduction

Another significant benefit of insulation of garage doors is noise reduction. Insulated doors help muffle outside noise, such as traffic or neighbors, and minimize sound from within the garage, such as tools, vehicles, or loud machinery. This can be particularly beneficial if your garage is attached to your home, as it helps maintain peace in living spaces.

Increased Durability

Insulating your garage door can also extend its lifespan. Insulated doors are less likely to warp, crack, or become damaged by extreme temperature fluctuations. The added layer of insulation can help protect the door from the elements, reducing the need for frequent repairs and maintenance.

Improved Home Value and Curb Appeal

A well-insulated garage door not only adds value to your home but can also enhance curb appeal. Many insulated garage doors come in various styles and finishes, allowing you to choose one that complements your home’s exterior. The energy-efficient features of a well-insulated garage door can be a selling point if you plan to put your home on the market.

Options for Garage Door Insulation

Polystyrene Insulation

Polystyrene, often referred to as rigid foam, is one of the most common types of insulation used for garage doors. It comes in panels that are fitted between the door’s metal sections.

Polyurethane Insulation

Polyurethane insulation is more efficient than polystyrene. It’s a liquid foam that expands and hardens inside the door, creating a solid layer of insulation. This type of insulation provides a higher R-value (a measure of thermal resistance), meaning it offers better temperature control. 

Reflective or Radiant Barrier Insulation

Radiant barrier insulation reflects heat away from the garage, making it especially effective in warmer climates. This type of insulation is typically made from reflective materials, such as aluminum foil. 

DIY vs. Professional Installation

Garage door insulation can be a DIY project, particularly if you’re working with polystyrene or reflective insulation. However, professional installation may be necessary for more complex options, like polyurethane insulation, to ensure it is applied correctly and provides the maximum benefit.

Insulating your garage door by Den Garage Doors offers multiple benefits, including improved energy efficiency, noise reduction, and increased comfort. Contact them at +303 418 8085 to have an estimate.

[epack-prefab]

The Undisputed Viability of Sandwich Panels in Prefab Construction

Sandwich panels have revolutionized the prefab construction industry by offering a lightweight yet sturdy construction material that meets modern building standards. These panels are made from two durable outer layers with an insulating core material, such as EPS (Expanded Polystyrene), polyurethane foam, or Rockwool.

Key Features of Sandwich Panels:

Excellent thermal insulation.

Lightweight and easy to install.

Superior soundproofing capabilities.

Durable and weather-resistant.

Cost-effective construction material.

2. Key Benefits of Sandwich Panels in Prefab Construction

Sandwich panels offer multiple advantages that make them a preferred choice for prefab buildings:

Energy Efficiency: The insulating core minimizes heat transfer, reducing HVAC costs.

Quick Installation: Prefabricated panels allow faster assembly and shorter project timelines.

Cost-Effective: Lower material waste and labor requirements reduce overall costs.

Structural Strength: Panels are durable and capable of withstanding harsh environmental conditions.

Customization: Available in various sizes and finishes to meet specific project requirements.

3. Applications of Sandwich Panels

Sandwich panels are highly versatile and used across multiple sectors in prefab construction:

Industrial Sheds: Durable and thermally insulated.

Warehouses: Protect goods with effective temperature control.

Factory Buildings: Quick deployment and long-term durability.

Cold Storage Units: Maintain stable temperature environments.

Commercial Spaces: Energy-efficient office buildings and showrooms.

Educational Institutions: Modular classrooms and administrative blocks.

4. Sustainability and Environmental Impact

Sustainability is at the core of modern prefab construction, and sandwich panels contribute significantly:

Reduced Carbon Footprint: Lower energy consumption during both production and operation.

Recyclable Materials: The materials used in sandwich panels are environmentally friendly.

Energy Efficiency: Superior insulation reduces energy waste.

Minimal Construction Waste: Prefabrication minimizes on-site material wastage.

5. Why EPACK Prefab is the Preferred Choice

EPACK Prefab has emerged as a leading name in delivering high-quality sandwich panels for prefab construction. With advanced manufacturing facilities and a focus on innovation, EPACK ensures:

Precision Engineering: Advanced technology for consistent quality.

Customization: Tailored designs to meet diverse project needs.

On-Time Delivery: Efficient logistics to ensure seamless project execution.

Sustainability Commitment: Environmentally conscious manufacturing practices.

Factory Locations:

Greater Noida (U.P.)

Rajasthan

Andhra Pradesh

Conclusion

The viability of sandwich panels in prefab construction is undeniable. Their exceptional insulation properties, structural strength, cost-efficiency, and sustainability make them an indispensable choice for industrial, commercial, and institutional projects.

At EPACK Prefab, we are committed to delivering premium-quality sandwich panels that align with your construction goals. Whether you're building warehouses, factories, or cold storage units, our solutions are tailored for efficiency and excellence.

For more information or to discuss your project requirements, contact EPACK Prefab today! Read More - Tips For Buying Rockwool Sandwich Panels!

[hitech-pcba]

Flexible PCB Manufacturer & Assembly Service

sales12@hitechpcb.com

Flexible PCB Manufacturer & Assembly – One-stop services

Hitech Circuits Co.,Ltd is a professional flexible pcb, FPC printed circuit board manufacturer,  supplier from China,  due to its features of bendable, reducing product size, good heat dissipation and solderability, easy assembly and low overall cost etc, it is widely used in mobile phones, wearable smart devices, automobiles,  medical treatment,  and industrial control etc. If you are looking for a reliable flexible PCB board partner in China, please don’t hesitate to contact sales@hitechcircuits.com 

SMT: Technical Points for Mounting Flexible PCB

There are many differences between the flexible PCB SMT process and the SMT solution of the traditional rigid PCB. If you want to do the SMT process of the flexible PCB, the most important thing is positioning, because the hardness of the flexible PCB is not enough, it is softer, and if the special carrier is not used, it cannot be fixed and transmitted, and the basic SMT processes such as printing, patch, and furnaces cannot be completed. The key points of pre-processing, fixing, printing, patch, reflux welding, testing, and division plates of flexible PCB in the production of SMT production are specified as below.

1. Flexible PCB pretreatment

The flexible PCB is softer, and it is generally not a vacuum packaging when it leaves the factory. It is easy to absorb the water in the atmosphere during the transportation and storage procedures. You need to prepare pre-baking treatment before the SMT patch process and slowly discharge the water, otherwise, under the impact of reflux welding at high temperatures, the water absorbed by the FPC quickly vaporizes into steam, which can easily lead to poor flexible PCB layer departure and foaming.

Generally, pre-baking temperatures are 80-100℃ for 4-8 hours, however, under the special condition, the temperature can be raised to more than 125℃, but need to shorten the baking time accordingly. Before baking, be sure to take a small sample test to determine whether the flexible PCB can withstand set baking temperatures, you can also consult flexible PCB manufacturers with appropriate baking process. When baking, don’t put too much flexible PCB for one time, 10-20 panels are more suitable. Some flexible PCB manufacturers may put a piece of paper among each flexible PCB to isolate them and at the same time need to check if the paper can bear the baking temperature, if it cannot be, then pull off the paper before baking. After baking, if the flexible PCB does not have the issues like visible change in color, out of shape, and up warp, etc and then need the IPQC to do sampling inspection.

2. Flexible PCB paste printing

The flexible PCB does not have a very special requirement for the ingredients of the weld paste. The size and metal content of the tin ball particles depends on whether there is a fine pitch IC on the flexible PCB, but the printing performance of the solder paste is higher in FPC, welded paste should be easy to print and eliminate modeling and can be firmly stacked to the flexible PCB surface, there will not be adversely obstructing the steel mesh leakage or collapse after printing.

Because the flexible PCB is loaded on the carrier plate, the flexible PCB has a high-temperature resistant tape for positioning to make its plane inconsistent, so the printing surface of flexible PCB cannot be as smooth as rigid PCB, and has same thickness and hardness, therefore, it is not suitable to use metal scraper, but should use the hardness of 80-90 degrees of polyurethane scraper. It is best to have an optical positioning system for tin paste printing machine, otherwise it will have a great impact on the quality of printing. Although the flexible PCB is fixed on the carrier, there will always be some small gaps between flexible PCB and the carrier, this is the biggest difference from the rigid board, so the setting of the machine parameters also has a greater impact on printing effects.

Printing station is also the key station to prevent flexible PCB dirt, workers need to wear finger stall during operation, at the same time to keep the station clean, and often wipe the steel mesh, to prevent solder paste pollution of the gold finger and gold buttons of flexible PCB.

3. Flexible PCB mounting

According to the characteristics of the product, the number of components, and the efficiency of the patch, needs to use the middle and high-speed patch machines to install. Since the optical mark label for positioning is available on each flexible PCB, SMD paste on the flexible PCB is not very different from the installation on the rigid PCB. It should be noted that although the flexible PCB is fixed on the carrier board, its surface cannot be as flat as rigid board, there will definitely be little gap between flexible PCB and the carrier, therefore, the descending height and blowing pressure of the suction nozzle should be set accurately, and the moving speed of the suction nozzle should be reduced. At the same time, the majority of flexible PCB are connected plates, and the finished product rate of flexible is relatively low, so it is normal for the whole panel to contain some defective board, which requires the bad marks recognition function of the SMT machine, otherwise, the production efficiency will be greatly reduced when the production of this kind of non-integrated panel is good.

4. Flexible PCB Reflow soldering

Mandatory hot air convection infrared reflow furnace should be used, so that the temperature on the flexible PCB can be more uniform change, reduce the occurrence of poor welding. If single-sided tape is used, it can only fix the four sides of the flexible PCB, and the middle part is deformed in the hot air condition, so that the welding plate is prone to tilt, and the molten tin (liquid tin at high temperature) will flow and produce air welding, continuous welding and tin beads, so that the process defect rate is high.

(1).Temperature curve test method:

Due to the different heat absorption properties of the carrier plate and the different types of components on the flexible PCB, their temperature rises at different rates after being heated in the reflow welding process, and the heat absorbed is also different, therefore, carefully setting the temperature curve of reflow furnace has a great influence on the welding quality. The relatively safe method is that according to the load interval during actual production, put two pieces carrier plates with flexible PCB on the front and back of the test board, at the same time, a component is installed on the flexible PCB of the test carrier plate, and the test temperature probe is welded to the test point with high temperature solder wire, meanwhile fix the probe wire on the carrier plate with high temperature resistant tape. Note that high-temperature tapes cannot cover the test point, the testing point should be selected at the welded joints and QFP pins near the side of the carrier plate, such test results can better reflect the real situation.

(2).Settings of temperature curve:

In the furnace temperature debugging, because the flexible PCB temperature uniformity is not good, so it is best to use the temperature curve of temperature rise/heat preservation/reflux, so that the parameters of each temperature area is easy to control, in addition, flexible PCB and components are less affected by heat shock, in this way, the parameters of each temperature area are easy to control. In addition, according to the experience, it is best to adjust the temperature of the furnace to the lower limit of the technical requirements of the welding paste, the wind speed of the welding furnace generally uses the minimum wind speed that the stove can be used, the back welding furnace chain should have good stability and cannot be shake.

5. The Test Division of Flexible PCB

Because the carrier plate absorbs heat in the furnace, especially the aluminum carrier plate, the temperature is higher when it comes out of the oven, so it is best to add a forced cooling fan at the furnace to help rapid cooling, at the same time, operators need to wear heat insulating gloves to avoid being burned by the high temperature carrier plate, when taking the finished flexible PCB from the carrier plate, the force should be uniform and cannot use much force to avoid the flexible PCB being torn or generate crease.

Doing visual inspection for the flexible PCB under the 5x magnifying glass, focusing on checking the surface residual gum, color change, golden finger dipping tin, tin bead, IC pin empty welding, and connected welding, because the flexible PCB surface cannot be flat, the misjudgment rate of AOI is high, so flexible PCB is generally not suitable for AOI checks, but through the use of special testing fixtures, flexible PCB can complete ICT and FCT testing.

Because flexible PCBs are mostly connected together, workers may need to do board split before the ICT and FCT testing, although tools such as blades and scissors can also be used to complete the division operations, the work efficiency and the quality of the operation are low and the scrap rate is high. If it is a large quantity of special-shaped flexible PCB, it is recommended to make a special stamping section mold and perform stamping segmentation, which can greatly improve the operating efficiency, meanwhile, the edge of the flexible PCB is neat and beautiful, it can effectively avoid welded tin cracks.

Conclusion

For SMD mounting on the flexible PCB, accurate positioning and fixing of the flexible PCB are the key points, and the key of fixing is to make the appropriate carrier plate; Secondly is the pr -baking, printing, patch and reflux welding of flexible PCB, obviously, the FPC's SMT process is more difficult than the rigid PCB, so it is necessary to accurately set the process parameters and strict production process management is also important. It is necessary to ensure that operators strictly implement every rule of SOP, engineers and IPQC should strengthen inspection,   and discover abnormal conditions of production line in time, analyze the causes and take necessary measures, so as to control the defect rate of production line.