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三一二七厂与第四规划研究设计院经过近二年的时间,共同研制成功适用于航空工业的立式真空淬火电炉。该炉经过多次工艺性的试验,达到较好的技术水平,有些主要技术指标超过了设计要求。工作温度250℃～1200℃,有效工作尺寸φ500×700,装炉量50公斤(不包括托料盘)。该炉的温度均匀性设计指标为±10℃,实际达到指标为±6.5℃,尤其是低温时的温度均匀性好,可做回火处理。该炉的总漏气率设计指标为小于1毫乇/分,实际达到0.07毫乇/分。
After nearly two years, 3112 Plant and the 4th Planning Research and Design Institute jointly developed a vertical vacuum quenching electric furnace successfully applied to the aviation industry. The furnace after several technological tests, to achieve better technical level, some of the major technical indicators have exceeded the design requirements. Working temperature 250 ℃ ~ 1200 ℃, effective working size φ500 × 700, loading capacity 50 kg (excluding the tray). The temperature uniformity of the furnace design index of ± 10 ℃, the actual target is ± 6.5 ℃, especially when the temperature uniformity at low temperature, do tempering. The furnace was designed for a total leakage rate of less than 1 mTorr / min, actually reaching 0.07 mTorr / min.