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一热压力加工后的高速工具我鋼爐冷的必要性大家知道,所有各种牌号的高速工具鋼都属於萊氏体型的自硬鋼。这种鋼从高於其臨界點的溫度冷却下來,即使是用保溫砂或渣棉來徐冷,也会產生麻頓赛体轉變。除了研究家們在实驗室作的試验研究以外,有人曾用直徑為15～45公厘的鋼條,結合工廠生產情况,作了冷却速度对高速工具钢變態的影响的試验。試驗結果列於[表一]。表一冷却速度对高速工具鋼變態的影响
A hot pressure processing speed tool I need the cold steel furnace We all know that all kinds of high-speed tool steel grades belong to the austenitic self-hardening steel. The steel is cooled from above its critical point, and even when it is subcooled with heat-insulating sand or slag wool, it can cause a Sudtonian transition. In addition to the experimental studies conducted by researchers in the laboratory, some people used steel bars with a diameter of 15-45 mm to test the effect of cooling rate on the deformation of high-speed tool steels in combination with the factory’s production. The test results are shown in Table 1. Table I. Cooling rate of high-speed tool steel metamorphosis