三 焊接工艺要求 Welding process requests
1 焊接材料与管道材料必须相同
2 焊接温度,聚丙烯210~230℃,聚乙烯195~210℃(具体情况根据室外温度而定)。
3 管道焊接处必须清洁干净。
4 焊缝表面应平整,不准有波纹形及焊缝弯曲现象。
5 焊条排列应紧密,不准有空隙。
6 焊条和管材及管件必须处于同时熔融状况进行焊接,但不应有烧焦或分解现象。
7 焊条应垂直焊缝并略施加一定作用力,知道焊条与制品熔接为止。
1.Welding rod material with pipe material must same.
2.Welds temperature,Polypropylene will be 210~230℃,Polyethylene will be 195~210℃.
3.Pipe welds place must clean.
4.Brazing seam surface should neat,Nots permit have slop lines shape and brazing seam bended phenomenon.
5.Welding rod alines should tightness,Not permit free crack.
6.Welding rod and tubing and administer must be in meanwhile melt status proceed weld,But not does due burn burner or anglyse phenomenon.
7.Welding rod should plumb brazing seam and slightly exert certain action and reaction,Tills welding rod with ware melt meet up to.
每一加工工序又可通过不同的塑性加工方法来实现。例如管材的弯曲加工,可分为绕弯、压弯、 推弯、滚弯等方法。
任何一家企业,无论其所提供的产品是量化的物,还是无形的服务,终都将受到市场和普通消费者的检验。
一 管材和管件连接 Tubing and administer a connection
1 所有管道端面必须加工平齐,并与管道中心线垂直。
2 采用碰焊连接的管道必须开坡口,碰焊管件厚度2~8mm,坡角为a=85-75°,管件厚10~20mm,坡角为a=75-65°具体形式见图:
3 对于承插连接的管子与管件,承心内侧应有1/32锥度。
4.法兰端密封面与管子中心线垂直偏差0~1°,法兰连接端的密封面的不水平度应小于0.3mm,承心的垂直偏心度应小于1mm。
5.法兰与法兰管件连接,配合面间应加密封垫片。
6.配件与配件间采用螺丝连接的,螺丝松紧程度应基本一致。
1.All pipe end face must process calm down neat,And with pipe camber line plumb.
2.Adopts touch weld copular pipe must open slope,Will touch weld administer a thickness 2~8mm,Slope corner for a=85-75°,Tubing will be thick 10~20mm,Slope corner for a=75-
65°concrete form see picture.
3.Towards bearing inserts copular pipe and administer,Dues 1/32 Zhui dus inner bearing heart.
4.Flange will hold dense cover with pipe camber line plumb deflection 0~one°,Flange connects hold’s seal up microbus not level degree should be less than 0.3mm,Bearing heart’s plumbs prejudicial should be less than 1mm.
5.Flange with flange administers a connection,Cooperates with between should plus seal up shim.
6.Accessory with adopts screw copular between accessory,Screw segree of tightness extent basically unanimously.
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