SMC Gas Meter Box Mould
The mold designed by SMC mold generally uses a hydraulic press, and the upper and lower parts of the mold are fixed on the press. The mold contains a cavity core, which is the same as an injection mold.
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Product Introduction
What are the basic characteristics of the mold designed by SMC mold:
The mold designed by SMC mold generally uses a hydraulic press, and the upper and lower parts of the mold are fixed on the press. The mold contains a cavity core, which is the same as an injection mold. The test mold data is placed on the opened mold, and then the press is closed. The set temperature and pressure generated by the press make the original data melt into the mold cavity , The test data of this type of mold is generally SMC, BMC, GMT. Therefore, we often refer to such molds as SMC molds, BMC molds, and GMT molds.
The SMC mold is designed for sheet-like thermoplastic materials, which are generally used for large products, and such products require greater strength. The BMC material is in the shape of a ball, has short fibers, low shortening, and the color is stable. The GMT material is glass fiber thermoplastics. , Can be applied to various parts of the car body, can replace traditional metal parts, reduce weight, reduce costs, and injection molds, SMC molds require heating rather than cooling. The general heating methods are steam, oil, electricity, and high-pressure water.
The temperature of SMC mold design is generally between 140 and 160. When designing the temperature system of the mold, pay attention to keeping the temperature of the entire surface of the mold the same. The uniformity of the temperature can reduce deformation, increase the stability of the scale, and the uniformity of the product surface. , Manufacturability reviews mainly include the estimation of mold design and production costs, mold assemblability reviews, mold parts manufacturing process reviews, mold structure and forming function reviews, etc.
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SMC series molding compound performance index:
|
Indicator name |
unit |
Index value ≥ |
||
|
4341 SMC-1 |
4343 SMC-2 |
4331 SMC-3 |
||
|
density |
g/cm3 |
1.75-1.95 |
||
|
Water absorption |
mg |
≤20 |
||
|
Mold shrinkage |
% |
≤0.15 |
≤0.30 |
|
|
Heat distortion temperature (A method) |
℃ |
≥240 |
≥220 |
|
|
Impact strength (simple bracket, no gap) |
KJ/M2 |
≥90 |
≥60 |
≥45 |
|
Bending strength |
MPa |
≥170 |
≥150 |
≥135 |
|
Insulation resistance |
normal |
п |
≥1.0*1013 |
1.0*1012 |
|
After soaking in water for 24h |
≥1.0*1012 |
|||
|
Electric strength (in transformer oil at 90℃) |
MV/m |
≥12.0 |
≥10.0 |
|
|
Dielectric loss factor (1MHz) |
- |
≤0.015 |
- |
|
|
Relative permittivity (1MHz) |
- |
≤4.8 |
- |
|
|
Arc resistance |
S |
≥180 |
≥150 |
|
|
Tracking Resistance Index(PTI) |
V |
≥600 |
||
|
Combustibility |
class |
FVO |
- |
|
|
Long-term heat resistance temperature index |
- |
155 |
130 |
|
About our company：
Taizhou Huangyan Jiutai Mould Co., Ltd. is a mould manufacturing company integrating manufacturing and sales. The company's main molds are SMC molds, BMC molds, GMT molds, etc. The company has been adhering to the business philosophy of "winning by quality, affordable prices, honesty and virtue, and customer first", and has won extensive trust and recognition from customers! Welcome new and old customers to visit and cooperate with us! All employees of Jiutai Mould wholeheartedly provide you with better products and better service!
FAQ:
Q: When can I get the price?
Answer: Usually we will quote within 48 hours after receiving your inquiry.
Q: Do you provide sample ? Is it free?
A: If the sample is low value, we will provide the free sample with freight collect. But for some high value samples, we need to collect the sample charge.
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