阅读说明：本技术 一种包套真空钎焊整体热处理盾构刀及其制造方法 (Sheathed vacuum brazing integral heat treatment shield cutter and manufacturing method thereof ) 是由 黄齐文 熊钊颋 黄闻欣 于 2021-08-18 设计创作，主要内容包括：本发明公开一种包套真空钎焊整体热处理盾构刀及其制造方法,所述盾构刀包括盾构刮刀和盾构滚刀,目的是对有多个硬质合金块体的盾构刀进行整体钎焊和整体热处理,优化钎焊质量、提高盾构刀基体机械性能,从而大幅提高盾构刀使用寿命。包套真空钎焊整体热处理盾构刀由以下部分组成：盾构刀刀体、硬质合金块体、钎焊合金和薄壁钢板制成的包套壳体及焊接于包套壳体上与包套壳体内部相同的抽真空管嘴,通过抽真空管嘴对包套体内抽真空至真空度为100帕以内,包套壳体保持包套体内的真空度的条件下完成盾构刀整体钎焊和热处理。(The invention discloses a sheathed vacuum brazing integral heat treatment shield cutter and a manufacturing method thereof, wherein the shield cutter comprises a shield scraper and a shield hob and aims to perform integral brazing and integral heat treatment on the shield cutter with a plurality of hard alloy blocks, so that the brazing quality is optimized, the mechanical property of a shield cutter base body is improved, and the service life of the shield cutter is greatly prolonged. The sheathed vacuum brazing integral heat treatment shield cutter consists of the following parts: the shield cutter comprises a shield cutter body, a hard alloy block, a cladding shell made of brazing alloy and a thin-wall steel plate and a vacuumizing nozzle welded on the cladding shell and identical to the inside of the cladding shell, the cladding shell is vacuumized by the vacuumizing nozzle until the vacuum degree is within 100 Pa, and the whole brazing and heat treatment of the shield cutter are completed under the condition that the cladding shell keeps the vacuum degree in the cladding shell.)