国产普通话对白视频二区_少妇无码精品一区二区三区_国产日韩av综合精品第一页_中文字幕国产91

  Thank you for visiting the official website of Dongguan Jiechen Silicone Rubber Machinery Co., Ltd.
high-tech enterprises
R&D, production and sales of silicone machine
phone

Support Hotline

Liquid silicone machine-basic production procedure

Author:yswl Date:2021-03-25 Reading:

The material supplier provides a low-viscosity, high-temperature vulcanized dual-group silicon material to be used, packed in 20 or 200KG containers A and B. Using a two-component mixing and batching system, group A and group B are transferred to the mixing pipeline at a ratio of 1:1 under the same pressure under electromagnetic control. At this time, colors and additives can also be added at a ratio between 0.3% and 4% to increase the color or change the characteristics of a certain material or product. Through the static mixer in the mixing pipeline, the reacted material mixture is conveyed to the liquid silicone rubber cylinder under pressure. In order to prevent premature vulcanization in the barrel, the temperature of the liquid silicone rubber plasticizing screw must be specially controlled to make the temperature close to 20~25°C. The material is then mixed again by the screw and then injected into the hot mold. The temperature of the hot mold is between 140°C and 220°C. Due to the low viscosity of the silicone material, the error in manufacturing these molds must be small to ensure that the two parts of the mold are extremely tight and closed. At the same time, in order to prevent problems such as production burning, unsatisfactory filling, and poor air exhaust, the mold is usually vacuumed before injection. The cold runner system is mainly used to obtain the best cycle time and minimize waste. The cold runner system can simplify the automation process and save materials. Pneumatic or demolding robots are more used to eject products that are usually extremely soft and sensitive.

Share To:
Contact Customer Service
A high-tech enterprise focusing on the research and development,production and sales of silicone machines for many years

客服

電話

0769-26628975
189-2556-0965 7*24小時服務熱線

微信

掃碼聯(lián)系客服掃碼添加微信
午夜精品久久久久久久久久久久 | www.91| 国产操逼视频| 91精品人妻少妇无码影院| 欧美午夜精品久久久久久浪潮| 老色鬼久久亚AV综合| 久久精品一区二区| 97一区二区国产好的精华液| 国产一级电影| 午夜精品久久久久久久久久久久| 超碰伊人| 国产精品嫩草影院com| 亚洲色小说| 日韩91| 日韩中文字幕在线| 二级毛片| 无码黄片| 亚洲日韩精品一区高清| 少妇无码| 寡妇高潮一级毛片91免费看日韩一区二区 | 日本操逼视频| 一级a性色生活片久久毛片| 丁香五月激情网| 精品九九| 午夜精品久久久久久久久久久久| 国产午夜精品一区不卡AV| 日本欧美久久久久免费播放网| 国产无码一区| 免费一级毛片| 久久久91人妻无码精品蜜桃HD| 欧亚乱色熟一区二区三四区| 国产午夜精品一区不卡AV| 欧美精品在线观看| 91在线无码精品秘 入口色欲| 色狠狠色综合久久久绯色AⅤ影视| 国产午夜精品一区不卡AV| 无码视频在线观看| 亚洲日韩精品欧美一区二区三区| 牲交欧美兽交欧美| 一级a性色生活片久久无少妇一级婬片免费放| 亚洲精品久久久久|