91狠狠色综合久久久夜色撩人,少妇高潮灌满白浆毛片免费看,欧美一级婬片A片免费老牛,性少妇videosexfreeXXXX片

Service hotline: +86-18669877296

Menu
Home > News> The Questions
Introduction and operation method of plastic sheet production line
Source:   Author:   Addtime:2018/8/23 21:12:06   Visits:

 

The plastic sheet production line is a type of plastic machinery. Sheet machine, sheet production line, sheet equipment, sheet extruder

 

Method of operation

 

1. PVC plastic sheet production line preheating: This is to make the mold heated before starting, it needs to be preheated to mold heating.

 

2. Clamping: Reasonable adjustment of the opening and closing stroke is beneficial to improve the demoulding of the product and the effect of product feeding.

 

3. PVC plastic sheet production line preheating: steam enters the solid transfer mold, preheating the mold, so that the mold is preheated, and the condensed water and cold air during the storage period are discharged. Function: Improve the mold temperature and enhance the apparent melting degree of the product.

 

4. Penetration heating: Improve the core and internal weldability of the product. The penetration heating and waste steam are more serious.

 

5. Heating on both sides: further enhance the heating effect and improve the surface quality of the product.

 

6. Rewarming (insulation): All valves are closed, making full use of the residual heat of the mold to make the product heat-insulated. Conducive to the surface of the product, it can save energy (steam).

 

7 Vacuum cooling: The vacuum valve is opened and the vacuum pump is evacuated. The residual heat and moisture in the mold and the product are all emptied, and part of the foaming agent is removed to prevent the product from swelling. Forming a negative pressure in the mold facilitates the release of the product.

 

Introduction

 

1. Horizontal three-roll single-sheet machine production line:

 

The unit is mainly composed of main machine, screen changer, mold, tablet press, conveying table, tractor, cutting machine, stacking rack or winding machine;

 

The gearbox is made of cast steel. The gears are made of alloy steel and processed by grinding. The lubrication points in the box are forced lubrication. The lubricating oil is equipped with high-efficiency water cooling system.

 

The screw material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

The barrel material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

Processable raw materials are: PP, PE, PVC, PS, ABS, etc.;

 

This unit is mainly suitable for: advertising field (such as folder, etc.) in the field of plastic products (such as plastic cups, plastic biscuit boxes, etc.) advertising fields (such as billboards, etc.)

 

2. Horizontal three-roller co-extrusion sheet production line:

 

The unit is mainly composed of main machine, screen changer, mold, three-layer distributor, tablet press, conveying platform, tractor, cutting machine or coiling machine;

 

The gearbox is made of cast steel. The gears are made of alloy steel and processed by grinding. The lubrication points in the box are forced lubrication. The lubricating oil is equipped with high-efficiency water cooling system.

 

The screw material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

The barrel material is made of 38CrMOA1A high-quality nitrided steel, which is nitrided and sprayed with alloy on the surface.

 

The raw materials that can be processed are: PP, PE, PS, etc.

 

layered structure: AB, ABA.

 

This unit is mainly suitable for: advertising field (such as folder) in the field of plast


Hot products show

Address: No.32, Tongxin Road, Sanlihe Industrial Park, Jiaozhou, Qingdao, China. Box: 1215328606@qq.com chaofengsuji@126.com
International Trade Department Tel: +86-0532-87271998 Domestic Sales Department Tel: +86-0532-87271998 18669877296 Fax: +86-0532-87271668
Qingdao Chaofeng Plastic Machinery Co., Ltd. ? Copyright Unless otherwise agreed in writing, it is strictly forbidden to copy and reprint all pictures and texts of this website.
美国A级毛片免费视频 | 2020天天日天天干 | 超碰aⅴ人人做人人爽 | 国产欧美一区二区三区精品酒店 | 欧美丰满一区二区免费视频 | 国产乱人乱偷精品视频 | 欧美性夜黄A片爽爽免费视频 | 成人午夜做爰高潮片免费吸气 | JlZZJlZZ国产精品久久 | 小嫩美女直喷白浆在线 | 少妇看黄色一级二级性生活高朝 | 91精品国产综合久久久久久漫画 | 一级A片色情大片视频我和少妇 | 91久久无码一区人妻A片蜜桃 | 成人 涩涩小片视频日本 | 黑人与中国女一级毛片 | 人人妻人人澡人人爽人人DVD | 女人脱精光按摩AA片 | 久久久精品无码人妻宝贝乖 | 美女骚穴在线观看 | 吉根柚莉爱在线乱码亚洲 | 婷婷99狠狠躁天天躁中文字幕 | 国产美女100%无裸露网站 | 国产成人a亚洲精品无 | 97久久女人奶水喷奶 | 成人粉嫩蜜桃AV小网站 | 熟妇的味道HD中文字幕 | 国产毛毛AAAAAAA做受 | 国产东北真人3p视频 | 日本中文字幕在线不卡 | 黄片在线免费观看视频 | 国产凹凸影视av导航 | 操b 用力 好舒服 在线观看 | 少妇偷人吃奶呻呻吟嗯啊 | 无套内谢少妇无套内谢视频 | 欧美性猛交XXXX黑人猛交 | 羞羞国产精品一区二区三区 | 在线观看黄www免费视频 | 免费一级婬片A片女人不叫 四季Av夜夜嗨噜噜噜蜜臀 | 婷婷五月天激情网 | 中文字字幕在线中文乱码修改方法 |