The invention discloses a manufacturing method for a low magnetic anchor chain accessory. The method comprises the following steps of I, feeding by way of sawing; II, a cogging and swaging direction shall be along a material rolling direction, wherein the forging ratio per fire does not exceed 2.5 during casting; III, ultrasonic flaw detection; IV, initially forged blank heating: forging and heating, wherein the initial forging temperature is 1100-1250 DEG C, the final forging temperature is not lower than 900 DEG C, and the total forging ratio is not less than 3; V, furnace cooling or sand burying cooling for the finally forged blank; VI, solution treatment for the finally forged blank; VII, flaw detection; VIII, machining of the finally forged blank, wherein the amount of feed per time does not exceed 0.5 mm; VIII, inspection and warehousing; and X, ageing treatment. By reducing the heating speed and shortening the temperature difference of a workpiece, cracking is prevented. By reducing the single time deformation and reducing the deformation resistance, the forming quality is improved. During machining, by reducing the amount of feed, tool adhesion is avoided, so that the surface quality of the low magnetic anchor chain accessory is improved.
本发明公开了一种低磁锚链附件的制造方法,包括以下步骤:一、采用锯料方式下料;二、开坯拔长方向应沿材料轧制方向;锻造时每火锻造比不超过2.5;三、超声波探伤;四、对初锻坯料加热,锻造加热,始锻温度1100~1250℃,终锻温度不低于900℃,总锻造比不小于3;五、终锻坯料随炉冷却或埋砂冷却;六、对终锻坯料固溶处理;七、探伤;八、对终锻坯料机加工,每次进刀量不超过0.5mm;九、检验、入库;步骤十、时效处理。本发明通过降低加热速度,缩小工件温差,防止开裂。通过减少单次变形量,减少变形阻力,提高成型质量;机加工时通过减少进刀量,避免粘刀,提高了低磁锚链附件表面质量。
Manufacturing method for low magnetic anchor chain accessory
一种低磁锚链附件的制造方法
2021-03-30
Patent
Electronic Resource
Chinese