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一、引言韦尔曼炉子有限公司为了满足小型零件热处理的需要和为试验研究提供热处理设备,于1982年研制了小型密封淬火炉。它由工作炉,组合式EXOCARB气氛发生器和控制(主要是温度控制与气氛控制)系统所组成。所用的气源是天然气、丙烷或城市煤气,也可使用其它原料。发生器产生的载气的组分是由17％CO、30％H_2和少量的CO_2、H_2O与CH_4以及余量氮所组成。这种小型密封淬火炉可用于黑色金属渗碳、碳氮共渗、淬火硬化、退火、正火和回火,也可用于有色金属退火和固溶处理。该炉规格如下:
I. INTRODUCTION WELMAN Furnace Co., Ltd. has developed a small sealed quenching furnace in 1982 in order to meet the needs of heat treatment of small parts and heat treatment equipment for experimental research. It consists of a furnace, combined EXOCARB atmosphere generator and control (mainly temperature control and atmosphere control) system. The gas source used is natural gas, propane or city gas, but other materials may be used. The components of the carrier gas generated by the generator are composed of 17% CO, 30% H 2 and a small amount of CO 2, H 2 O and CH 4, and the balance of nitrogen. This small sealed quenching furnace can be used for ferrous metal carburizing, carbonitriding, quench hardening, annealing, normalizing and tempering, can also be used for non-ferrous metal annealing and solution treatment. The furnace specifications are as follows: