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: 国产精品久久久久9999高清| 成人国产精品无码网站| 最新国产精品好看的精品 | 国产亚洲精选美女久久久久| 国产农村妇女高潮大叫| 艳妇臀荡乳欲伦交换h在线观看| 天堂资源在线www中文| 国产午夜亚洲精品不卡| 国产精自产拍在线看中文| 18禁止午夜福利体验区| 丰满少妇熟女高潮流白浆| 67194熟妇在线观看线路| 水蜜桃av无码| 国产午夜精品一区二区三区老| 免费观看男女性高视频| 国产在热线精品视频| 一个人看的www视频免费观看| 国产精品成人久久电影| 亚洲经典国产精华液单品榜| 97国产在线看片免费人成视频| 精品国产乱码一区二区三区| а√资源新版在线天堂| 两性色午夜视频免费播放 | 欧美多人片高潮野外做片黑人| 日韩高清亚洲日韩精品一区| 久久久久久伊人高潮影院| 精品亚洲aⅴ在线无码播放| 老色鬼永久精品网站| 四虎影视永久地址www成人| 午夜福利影院私人爽爽| 伊人久久综合无码成人网| 大陆熟妇丰满多毛xxxx| 国产乡下三级全黄三级bd| 熟女俱乐部五十路六十路| 日本va在线视频播放| 色一情一区二区三区四区| 亚洲婷婷综合色香五月| 男女久久久国产一区二区三区| 国产成人精品一区二三区| 亚洲人成网77777色在线播放| 国产制服丝袜亚洲高清|