日韩av高清在线观看丨久久精品国产99国产精品亚洲丨免费观看黄网站在线播放丨精品一区二区三区自拍图片区丨亚洲中字慕日产2020

news

Focus on current issues

What is the difference between LFT mold and SMC mold?

1. Definition of LFT:
LFT, long fiber reinforced thermoplastic material, English is Long Fiber reinforced Thermoplastics, is compared with ordinary fiber reinforced thermoplastic materials, under normal circumstances, the fiber length in fiber reinforced thermoplastic materials is less than 1 mm, while in LFT, The length of the fiber is generally greater than 2 mm, and the current processing technology has been able to keep the fiber length in the LFT above 5 mm.

2. The composition of LFT:
LFT (Long Glass Fiber Reinforced Plastic) analysis is based on the micro-spectrum analysis technology, which analyzes the content of each component of the profile through the micro-spectrum, and restores the basic formula. Long fiber reinforced thermoplastic materials are compared with ordinary fiber reinforced thermoplastic materials. The most used matrix resin is PP, followed by PA, and some resins such as PBT, PPS, SAN, etc. are also used. There are many applications of LFT in automobiles, and the main advantage is the flexibility of materials that can be compounded in it.

The difference between LFT and SMC:
The manufacturing process of the LFT sheet is very similar to the SMC (sheet molding material) in the thermosetting composite glass fiber reinforced plastic. The same is made by pressing a sheet in a mold. LFT is a hard sheet that is heated and softened and then cold-pressed in a mold, while SMC is a cold-pressed soft sheet that is placed in the mold and then hot-pressed.

Compared with SMC sheet, the technical performance of LFT sheet has the following advantages:
1. It is harmless and tasteless, which can improve the working environment.
2. Light weight, density is only 1~1.2g/cm3.
3. Leftovers and waste products can be recycled to reduce waste.
4. The strength is higher than that of SMC, and the impact resistance is particularly outstanding.
5. Corrosion resistance and electrical performance are better.
6. The product pressing speed is several times faster than that of SMC, and the production efficiency is greatly improved.
www.3g265.com

主站蜘蛛池模板: 欧美亚洲日本国产综合在线| 欧美精品videossex少妇| 国产女人18毛片水真多18精品| 精品国产制服丝袜高跟 | 成人乱码一区二区三区av| 国产亚洲精品久久久久久牛牛| 亚洲精品一区二区| 国产亚洲精品久久yy5099| 国产成+人+综合+亚洲欧美| 丰满少妇人妻无码| 狠狠色噜噜狠狠狠7777奇米| 欧美国产成人精品一区二区三区 | 国产午夜福利片在线观看| 996久久国产精品线观看| 国产在线高清亚洲精品二区| 日韩精品少妇无码受不了| 精品国产乱码久久久久久口爆| 欧美 日韩 人妻 高清 中文| 国产黄网永久免费视频大全| 激情文学小说区另类小说同性| 亚洲日韩欧美在线成人 | 精品久久久久久无码中文字幕一区 | 中国精学生妹品射精久久| 蜜桃av抽搐高潮一区二区| 成片免费观看视频大全| 亚洲国产精品av在线播放| 欧美黑人又粗又大的性格特点| 中文字幕乱码中文乱码777| 欧美日韩不卡视频合集| 992tv精品视频tv在线观看| 久久国产亚洲高清观看| 99精品偷自拍| 日韩去日本高清在线| 日日日日做夜夜夜夜无码| 忘忧草在线社区www中国中文| 边添小泬边狠狠躁视频| 国产粗话肉麻对白在线播放| 欧美饥渴少妇xxxxx性| 国产国拍亚洲精品av在线| 国产真实交换配乱婬95视频| 无码8090精品久久一区|