News
HOME > NEWS

Cold drawn seamless steel tube production process

Read:425     Author:admin     Publish Time: 09-04-2019

Round steel(圆钢)--Raw Mterial inspection(原材料检验)--Hot piercing(热穿孔)--Waste pipe inspection(荒管检验)--Pickling and lubrication(酸洗润滑)--Precision cold drawing(精密冷拔) --Cut off(切断)--Annealing treatment(退火处理) --Straightening (矫直)--Surface treatment(表面处理 润滑)--Precision cold rolling(精密冷轧)Process dimention inspection (过程尺寸检验)--Inside and outside surface cleaning(内外表面清洗)--Anaerobic bright Annealing(无氧光亮退火) --Mechanical testing(力学检测)--Chemical Analysis(化学分析)--Straightening(矫直)--Scale cut off(定尺切断)--Finished product inspection(成品检验)--Eddy current flaw testing(涡流探伤)--Inside and outside surface Anti-rust treatment(内外表面防锈处理)--Package(包装)--Products storage(成品入库)--- Delivery to customer(发至用户) .

Contact Us

EMAIL: wansteel@sdwansteel.com
TEL:  0086-538-8997089      
MOB: 86 18661300733
FAX:  0086-538-8997333      
ADD: No.96 Great wall Road, Tai’an City, Shandong Province, China.
 

SHANDONG WAN STEEL IMP.&EXP.CO., LTD All rights reserved. 
Ellipsoidal head    hemispherical head    aluminum shot