Product Details
Product Description
Product Description
Understanding of transformer bobbin:
Bobbin (skeleton) plays the role of supporting coil (coil) in the transformer.
According to the different nature requirements of the transformer, it can be divided into thermoplastic materials and thermosetting materials.
Thermoplastic materials we commonly use are nylon, plastic and plastic. Thermosetting materials we commonly use are bakelite.
Characteristics and uses:
1. Bakelite (PM): thermosetting material with high stability, not easy to deform, temperature resistance of 150 ℃, high temperature of 370 ℃. The surface is smooth, fragile and can not be recycled. It is used for transformers with high temperature resistance.
2. Nylon: thermoplastic material, engineering plastic, with good ductility, not fragile, temperature resistance of 115 ℃, easy to absorb water, baked at 80 ℃ before use to make it stable. The surface is smooth, translucent and not fragile. It is generally used in transformers with strong oil resistance.
3. Plastic (PET): thermoplastic material, high hardness, easy to form, not easy to deform, temperature resistant to 170 ℃, non smooth surface, not fragile, generally used for bobbin.
4. Plastic (PBT): thermoplastic material, soft, not easy to deform, not resistant to high temperature (160 ℃), not smooth and not fragile, generally used for bobbin.
Material selection:
Conventional high-frequency transformer bobbin mainly uses bakelite powder materials as basic materials, such as t373j and t375j materials of Changchun company, pm9820, pm9630 and LCP materials of Sumitomo company. The material is brittle and fragile, and the fire rating is 94V-0. It can withstand high temperature (370 degrees), voltage resistance is about 10kV / mm, and the surface is smooth. It can be said that bakelite is the most used material in transformers, because it has high temperature resistance, no deformation, medium voltage resistance and is suitable for large and medium-sized power transformers.
Another kind of PET material is often used for bobbin support of high-frequency transformer wire rack. PET: chemical name polyethylene terephthalate, abbreviated as pet, is the most important variety of thermoplastic polyester, commonly known as polyester resin. Pet is easy to melt and form when heated. Its temperature resistance is around 130 degrees. It is not easy to deform after heating (thermal deformation temperature is 246 degrees). Its fire rating is 94V-0 and voltage resistance is 18kV / mm. It can be used as bobbin of high-frequency transformer and inductor shell. Its price is slightly higher than that of PBT.
Bobbin, a high-frequency transformer framework, can be selected and customized according to customers' specific use scenarios and requirements.
>>
4oz 120ml Factory Wholesale Popular Eco-Friendly Lead-Free Square Glass Spice Jar with Airtight Metal Lid Glass Salt Pepper Jars with Shaker Lids and Sift
>>
1325 2030 2040 6090 Woodworking CNC Router Machine for OEM and ODM Wood Carving
>>
Lanuss Lsg Series Wet Belt Sander for 300 Width Metal Deburring with Precision Chamfering
>>
Universal Horizontal Machining CNC Turret Slat Machine Tool & Lathe for Cutting Metal
>>
World Harvester Blade Guard
>>
Customized Factory Price Small 532nm 0.99MW ~ 50MW Apd Green Laser Module for Sale
>>
6kw dual voltage silent diesel generator
>>
SC-112, SC-113 Kevlar Harvester Rubber Belt For The Combine Harvester
>>
DELL Single Hot-Plug Power Supply 495W
>>
Horizontal Turret Type 12 Spindle CNC Drilling and Tapping Machining Center, Milling Groove Composite Machine for Faucet
>>
Factory Price Folding Glass Heating and Barbecue Outdoor Wood Fire Pit Brazier
>>
10A 250V Italy power cord 2 wire
>>
Y100A 250mbar Black Steel Case 1.6% Accuracy Capsule Pressure Gauge
>>
Sliding Casement Window Door Aluminum Frame Profile OEM for Commercial Building
>>
Quality Outdoor Folding Knife Colorful Titanium Handle Camping Multi-function Tool Pocket Pliers
>>
Reverse osmosis membrane shell of 8-inch FRP pressure vessel for Ro Pressure Vessels
>>
Taijia digital load cell digital force gauge Digital Wireless Dynamometer Crane Scale Load Cell Wireless Crane Load Indicator
>>
For Ford Explorer 2020 Car Exterior Accessories Inner and Outer Side Door Sill Scuff Plate Pedal Guard Protector Cover 8PCS
>>
Support Customization Roof Digital Radio Shark Fin Antenna Car GPS Antenna GSM Antenna Gnss Antenna
>>
Ortonbath Modern Rimless Wall Hungwc Matt Black Ceramic Toilet with UF Slim Soft Close Seat Elongated Wc Wall Mounted Toilet
