What plastic is the skeleton of an electronic transformer made of? Want to have detailed plastic model ratio?

What plastic is the skeleton of an electronic transformer made of? Want to have detailed plastic model ratio?

Bakelite (PHENOLIC): general is black, as one of the most frequently used transformer skeleton high-quality raw materials, such as Changchun T373J, T375J, PM9820, PM9630 Sumitomo, the material is brittle, fire rating of 94V-0, especially the high temperature (370 degrees), the ability to withstand voltage is 10KV/mm left and right, smooth surface can be said; bakelite, transformer is used inside a material most, because it has high temperature resistance, no deformation, high voltage resistance medium, suitable for large and medium-sized power transformer, but fragile is a disadvantage, it is inevitable, and this kind of material can not be recycled.

LCP: General for rice, is a kind of liquid crystal polymer, is a kind of material between PET and bakelite, hardness and toughness were relatively good, typical materials such as E-4008, the thermal deformation temperature of 313 degrees, still dielectric properties of creep resistance and low thermal expansion coefficient and high dimensional stability is good at high temperature, in the field of transformer used for production of SMD transformer, flame retardant grade is 94V-0, but the price is expensive.

PET: general black, heat melting, toughness (compared with nylon for slightly better), easy to shape, temperature at around 130 degrees, not easy to deformation after heating (heat distortion temperature of 246 degrees), fire rating of 94V-0, the insulation material is slightly worse than the PBT 18kV /mm, the ability to withstand voltage, the surface is not smooth, can be used to make high frequency transformer skeleton, inductance and shell, the price slightly higher than PBT.

PBT: usually white, brown or beige, toughness is relatively good, temperature at 120 degrees, heat deformation (thermal deformation temperature of 205 degrees), fire rating of 94V-0, the material of the insulation performance is good, the high voltage is 22KV/mm, the surface is not smooth; the influence of the above characteristics. The material is mainly used for transformer or inductor in the production line of small size is relatively small, at the same time this kind of material is cheaper, Tesco, low manufacturing cost, suitable for mass production.

Niron (NYLON): white transparent, have certain water absorption, oil resistance, strong toughness, good ductility, not fragile, but the heat melting, winding deformation, temperature is usually around 110 degrees, fire rating of 94V-2 or 94V-HB, high voltage is 27KV/mm, the surface is smooth; the the above characteristics of the Niron material used to make the winding is not very high or low frequency transformer, common coil inductance