High-performance thin-wall graphite-copper alloy shaft sleeve

• Main Author: FANG CANGEN
• Format: Patent
• Language: Chinese; English
• Published: 29.06.2018
• Subjects: ALLOYS; BEARINGS; BLASTING; CHEMISTRY; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FERROUS OR NON-FERROUS ALLOYS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WEAPONS

The invention discloses a high-performance thin-wall graphite-copper alloy shaft sleeve. The shaft sleeve is prepared from the following raw materials in parts by weight: pure copper, high-purity tin,lead oxide, beryllium chloride, elemental tungsten and a rare earth additive. The forming process comprises the following steps of preparing the raw materials, specifically, weighing a certain amountof raw materials according to a certain formula ratio for later use; mixing the raw materials, specifically, putting the pure copper in parts by weight into a furnace, heating the pure copper to 1100-1200 DEG C to melt the pure copper, then adding the high-purity tin, the lead oxide, the beryllium chloride and the elemental tungsten, carrying out heating and melting, and carrying out slagging; then, adding the rare earth additive and carrying out cooling to reach 450 -550 DEG C after all the materials are molten so as to prepare a copper alloy solution for later use; carrying out injection molding, specifically, guidi