双金属复合管挤压的生产工艺 |
添加时间:2018/8/28 17:46:30 浏览次数: |
双金属复合管坯的成型原理是利用离心铸造技术,分层浇铸不同成分的金属液,使内外金属的熔合层控制在一定厚度范围内,形成完全的冶金熔合。双金属复合管坯的卧式离心生产工艺流程为:管模清理→预热→喷挂涂料→烘干→上端盖→启动离心机→(外层金属液熔炼)浇铸外层→(内层金属液溶炼)浇铸内层→毛坯→加工成复合管坯管坯。 The forming principle of bimetal composite pipe blank is to use centrifugal casting technology, layered casting of different components of metal liquid, so that the internal and external metal fusion layer is controlled within a certain thickness range, forming a complete metallurgical fusion. The horizontal centrifugal production process of bimetal composite pipe blank is as follows: pipe mold cleaning preheating spray coating drying upper cover starting centrifuge casting outer layer casting inner layer blank processing into composite pipe blank. 离心浇铸成双金属复合管坯后,坯料需要进行内外表面加工。与单金属坯料加工的主要区别:双金属坯料加工之前需要对中径进行核实,根据中径的实际尺寸来确定外径和内径的加工尺寸;表面的加工粗糙度根据不同的材料分别要求,一般为碳钢、合金钢Ra≤6.3μm,不锈钢Ra≤3.2μm,镍基合金Ra≤1.6μm。 After centrifugally cast into bimetallic composite billets, the billets need to be machined inside and outside. The main differences between bimetal billet and single metal billet processing are as follows: before bimetal billet processing, it is necessary to verify the middle diameter, and to determine the processing size of the outer diameter and inner diameter according to the actual size of the middle diameter; surface roughness according to different material requirements, generally for carbon steel, alloy steel Ra < 6.3 micron, stainless steel Ra < 3.2 micron, nickel-based. The alloy Ra is less than 1.6 m. |
上一页 双金属复合管基本原理 |
下一页 螺纹连接 |
Copyright © 技术支持:遨游网络