国产三级片在线观看,中文字幕免费高清电视剧,成人精品一区二区三区A片用毒蛇,特级西西人体WWWww

Kefengyuan Home > News > Company news >

Products

Company news

The carat tube equipment manufacturer will show you the diff

Release time:2018-10-22 11:32

1. carat tube (HDPE wound B tube)
Product Name: high density polyethylene (HDPE) winding reinforced tube (winding reinforced tube) (hereinafter referred to as carat tube).
Adopt the standard: the tube of carat tube must conform to the GB/T19472.2-2004 type B structure wall tube.
Connection mode: the clam pipe adopts the wound socket type electric melting connection pipe winding material.
Major raw materials: non-toxic and harmless high-density polyethylene (PE), polypropylene (PP) bellows as the top-grade skeleton tube, mixed with certain colorimetric masterbatch for a scientific and uniform proportion.
HDPE high density polyethylene double wall bellows refer to:
Product Name: high density polyethylene (HDPE) double wall bellows (hereinafter referred to as PE double wall bellows);
Adopt standard: PE double wall bellows pipe must conform to GB/T19472.1-2004 type B structure wall pipe.
Connection mode: PE double wall bellows connection mode is tight type socket type filler connection.
Main raw materials: high density polyethylene or rigid polyvinyl chloride resin as the main raw material.
2.1 carat tube production process:
High density polyethylene (HDPE) winding reinforced pipe is made of HDPE in hot melt state by winding forming technology. Before demoulding in hot state, the tube is cooled by rolling air cooling method. The pipe gradually dissipates heat and the wall thickness is uniform. HDPE winding reinforcing pipe is connected by plug-in electric fusion. The two ends of the pipe are processed into sockets and sockets during production, and electric fuse is embedded in the socket. When the pipe is connected, the welding can be completed only by connecting the power supply, and the pipe system can achieve zero leakage.

1) Winding: Hot winding process, melted HDPE plain strip and PP-coated circular stiffener winding synchronously on the mold heated to a predetermined temperature.
Winding process of carat tube for carat tube equipment
2) cutting: pipe bearing and inserting ports are processed to standard size.
Cutting of the production process of the carat tube
3) demoulding: the tube is detached from the mold.
Demoulding of the production process of carat tube
4) modification: make the appearance smooth and standard.
The practice of the production process of carat tube
5) electric fuse is buried: electric fuse is embedded in the inner wall of the pipe.
Electric fuse embedding process for the production process of the carat tube
6) product inspection: testing the appearance and size of the products to ensure that the qualified products are out of the factory.
2.2PE double wall bellows production line process flow:
Because PE double-wall bellows are mostly of large caliber specifications and have many raw materials for extrusion molding, twin-screw extruders (parallel or conical twin-screw extruders can be used in general manufacturers), the forming process of PE double-wall bellows mainly passes through three technological processes: tube molding, tube cutting and flaring, as follows
1) tube forming process:
Powder after mixing screen - feeding to Extruder - heating plasticizing to Extruder - shunting to extruder head - compressing to double thin-walled tube - blown by compressed air between module and sizing sleeve - forming inside and outside wall - cooling water sequence but finalized - continuous drawing tube stripping
2) tube cutting process:
Forming machine uniform speed out of the tube - cutting machine fixture clamping and peer - cutting cutter head rotation parallel feed - cutting pipe - cutter head reset - fixture loosening reset - car back to wait for the next command.



Tel

Top

強姦婬片A片AAA毛片Mⅴ | 国产女人裸体在线观看免费视频 | 波多野结衣无码后入 | 天天爱天天做天天大综合 | 日本熟人妻人伦A片悠田优 人妻少妇精品无码专区二区 | 国产寡妇婬乱A毛片91精品 | 夜本色视频一区二区三区 | 四川BBBB搡BBB搡B1图 | 精品高潮呻吟久久av无码 | 风骚老女 中文字幕 | 天天穞夜夜穞狠狠稆不够 | 国产美女遭强高潮开双腿网站小说在线观看 | 一夲道人妻熟女AⅤ电影 | 久久成人影视白浆潮喷视频在线观看 | 国产91九色足控脚交在线播放 | 内射毛片内射国产夫妻 | 欧美日韩一区区三区四区 | 亚洲91乱码毛片在线播放 | 国产精品人人妻人人爽30p | 一区二区三区在线观看国产 | 波多野无码丰满尖叫高潮 | 国产精久久一区二区三区 | 午夜剧场三级爱爱黑人 | av资源库中文在线播放 | 美女被操出白浆在线观看 | 欧美,日韩,国产黄图91块 | 精品亚洲国产成人AV制服丝袜 | 国产区一区二区三 | 人妻中文字幕蜜美杏超绝伦 | 国产乱子伦一区二区三区 | 印度强奸av手机天堂网 | 91丨九色丨吃奶海角社区 | 蜜桃AV裸体美女被操潮吹 | 成人免费毛片 网站 | 欧美午夜精品人妻久久久久 | 国产一级一厂片内射视频播放蘑菇 | 亚洲成人一区二区三区 | 变态调教一区二区三区 | 九色丨老熟女丨91啦 | 国产AV无码精品 | 红桃影视成人A片免费观看 果冻传媒AⅤ毛片无码蜜桃 |