Anti-corrosion anti-wear five-valve group preparing process

• Main Authors: CHEN LONG, LU CHAO
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2018
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides an anti-corrosion anti-wear five-valve group preparing process. The anti-corrosion anti-wear five-valve group preparing process specifically comprises following steps that S1, ingredients are subject to vacuum induction smelting in a vacuum induction furnace under the vacuum degree of 0.5 to 1 Pa under the chemical component proportion; S2, refining is carried out, wherein primary refining and secondary refining are carried out; S3, casting is carried out; S4, rolling is carried out; S5, forging is carried out; S6, dephosphorization is carried out, wherein a casting blank is conveyed to a high-pressure water descaling machine, and surface oxide scale is removed; and S7, heat treatment, wherein primary annealing, secondary annealing, quenching and solid-solution treatment are carried out. 本发明是种耐腐蚀耐磨五阀组制备工艺，具体包括以下步骤：S1：将配料化学成分的配比经真空感应炉在0.5-1Pa真空度下，进行真空感应冶炼；S2：精炼：次精炼；二次精炼；S3：浇铸；S4：轧制，S5：锻造；S6：除磷：将铸坯输往高压水除鳞机，清除表面氧化铁皮；S7：热处理：（1）次退火；（2）二次退火；（3）淬火；（4）固溶处理。