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管坯——檢驗——剝皮——檢驗——加熱——穿孔——酸洗——修蘑——潤滑風干——焊頭——冷拔——固溶處理——酸洗——酸洗鈍化——檢驗
The production process of 16MN seamless steel tube can be divided into two kinds: cold drawing and hot rolling. The production process of cold-rolled seamless steel tube is more complicated than hot rolling. The billet must first be rolled by three rolls. After extrusion, the sizing test should be carried out. If the surface does not respond to the crack, the round pipe should be tested. Cutting through the cutting machine, cutting the growth of about one meter billet. Then enter the annealing process, annealing with acid liquid pickling, pickling should pay attention to whether there is a large number of surface bubbles, if there is a large number of bubbles produced that the quality of steel pipe can not meet the response standard. Cold-rolled seamless steel tube is shorter than hot-rolled seamless steel tube in appearance, the wall thickness of cold-rolled seamless steel tube is generally smaller than hot-rolled seamless steel tube, but the surface looks brighter than thick-walled seamless steel tube, the surface is not too rough, the caliber is not too much burr.【勝倉管業 高經理13730570531 QQ：2927372564】
The delivery status of hot-rolled seamless steel tubes is generally delivered after hot rolling. After quality inspection, hot-rolled seamless steel pipe must be selected strictly by hand. After quality inspection, oil should be coated on the surface, followed by many cold-drawing experiments. After hot-rolling, perforation experiments should be carried out. If the perforation is too large, straightening and rectification should be carried out. After straightening, it is transferred to the flaw detector by the conveyor to carry out the flaw detection experiment. Finally, it is labeled, arranged and placed in the warehouse.【勝倉管業 高經理13730570531 QQ：2927372564】
Technological process
Sanitary mirror tube process:【勝倉管業 高經理13730570531 QQ：2927372564】
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Thick walled industrial pipe process:【勝倉管業 高經理13730570531 QQ：2927372564】
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