35crmo合金管426*20制造工艺秦皇岛无缝钢管
35crmo合金管制造工艺
1.热轧(挤压无缝钢管):圆管坯→加热→穿孔→三辊斜轧、连轧或挤压→脱管→定径(或减径)→冷却→矫直→水压试验(或探伤)→标记→入库
2.冷拔(轧)无缝钢管:圆管坯→加热→穿孔→打头→退火→酸洗→涂油(镀铜)→多道次冷拔(冷轧)→坯管→热处理→矫直→水压试验(探伤)→标记→入库
56×3.5-4-5-6-7-8-9-10 58 219×6-8-12-16-18-20-25 110 630×10-20-30-40-55 130 57×3.5-5-6-7-8-9-10-12 50 219×30-40-45-50-55 65 640×12-25-32-40-50-65 90 60×3.5-4.5-5-6-7-8-9-12-14 60 219×55-58-60-65-70 80 650×15-20-30-40-50-60-65 85 63×3.5-4.5-5-6-7-8-9-10-12-14 40 245×8-10-14-17-20-22 105 680×20-25-35-45-65 75 68×4-4.5-5-6-7-8-9-10-12-14-16 35 245×25-28-30-34-40 84 710×10-20-30-45-50-65 90 70×4-4.5-5-6-7-8-9-10-12-15-16 40 273×7-9-12-15-18-20-25 100 720×10-20-30-45-50-65 120 73×4-4.5-5-6-7-8-9-10-12-15 50 273×30-35-38-40-45-50 50 750×20-35-45-60 100 76×4-4.5-5-6-7-8-9-10-12-14 60 299×8-12-16-20-24-28 60 780×45-65
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