• 专利标题:   Manufacturing copper alloy for hydrocooling exchangers based on single crystal silicon smelting comprises e.g. preparing furnace material comprising chromium, zirconium, silicon, magnesium, rare earth, and graphene supported cerium powder.
  • 专利号:   CN113293322-A, CN113293322-B
  • 发明人:   ZHANG Q, ZHANG H, YU G, LI L, MA M, WU B, WANG C, JING L
  • 专利权人:   SHAANXI SIRUI ADVANCED MATERIALS CO LTD
  • 国际专利分类:   C22C001/06, C22C001/10, C22C030/02, C22C009/00, C22F001/08, C23C008/36
  • 专利详细信息:   CN113293322-A 24 Aug 2021 C22C-009/00 202174 Pages: 12 Chinese
  • 申请详细信息:   CN113293322-A CN10402971 15 Apr 2021
  • 优先权号:   CN10402971

▎ 摘  要

NOVELTY - Manufacturing copper alloy for hydrocooling exchangers based on single crystal silicon smelting comprises e.g. (i) preparing furnace material comprising chromium, zirconium, silicon, magnesium, rare earth, graphene supported cerium powder and copper, (ii) adding glass and flux to bottom of furnace, adding sheet-shaped copper plate to bottom, starting cold furnace, heating, melting copper plate, and adding block-shaped copper and scrap-shaped copper furnace materials, (iii) heating, adding silicon, magnesium, rare earth and graphene-loaded cerium powder in sequence, (iv) taking small amount of melt sample to detect content of chromium in original copper solution, and starting degassing with argon, (v) determining amount of chromium and adjusting composition, adding chromium block, and stirring, (vi) adjusting content of chromium content, adding copper-magnesium alloy for deoxidation, and (vii) post-processing copper alloy by ingot casting, billet, cold forging and machining. USE - The method is useful for manufacturing copper alloy for hydrocooling exchangers based on single crystal silicon smelting. ADVANTAGE - The method: utilizes chromium-zirconium-copper as base material; adds rare earth elements, so that the copper alloy has excellent thermal conductivity and remains unchanged; prepares copper alloy having higher heat resistance and strength; and improves corrosion resistance of copper alloy and service life of the hydrocooling exchanger. DETAILED DESCRIPTION - Manufacturing copper alloy for hydrocooling exchangers based on single crystal silicon smelting comprises (i) preparing furnace material that needs to be smelted, where each element in furnace material comprises 25 wt.% chromium, 3-15 wt.% zirconium, 1-3 wt.% silicon, 1-2 wt.% magnesium, 1-8 wt.% rare earth, 1-5 wt.% graphene supported cerium powder, and copper (remaining amount), where chromium and zirconium are added in the form of master alloy copper plate, (ii) adding glass and flux to bottom of furnace, then adding sheet-shaped copper plate to bottom, starting cold furnace with heating power of 320 plus minus 10 KW, heating to 600-800 degrees C for 20 minutes, using heating power of 600 plus minus 10 KW to heat up to 1100-1200 degrees C for 20 minutes, melting copper plate, adding block-shaped copper and scrap-shaped copper furnace materials, ensuring that there are continuous melting layer, heating layer and preheating layer in the furnace cavity, and adding small materials after furnace material is melted, (iii) heating to 1250 degrees C with a heating power of 850 plus minus 10 KW, adding silicon, magnesium, rare earth and graphene-loaded cerium powder in sequence, and keeping warm until the melt is melted, (iv) taking a small amount of melt sample to detect content of chromium in original copper solution, keeping the heating power to 850-10 KW and starting degassing with argon for 15 minutes, and keeping the argon pressure at 7 Pa, (v) determining amount of chromium added according to calculated chromium content and adjusting the composition, adding chromium block, stirring at high-power stirring speed for 15 minutes, using the heating power of 850 plus minus 10 KW to raise temperature to 1340 plus minus 40 degrees C and taking samples to detect chromium content in adjusted melt until required chromium content is reached, (vi) adjusting the content of chromium content, adding 3.2 kg copper-magnesium alloy for deoxidation, releasing the furnace, and controlling the temperature of furnace at 1310-1400 degrees C, and (vii) post-processing copper alloy by ingot casting, billet, cold forging and machining to obtain finished product.