论文部分内容阅读
用高压气淬真空炉对模具和刀具的硬化处理与日俱增，现已成功地对冷加工钢或热加工钢制成的大小锻铸件进行了硬化。较大尺寸的高速钢刀具气淬后也得到了高的热硬性、好的韧性、极好的耐磨性。 本文重点强调高压气淬所能得到的淬火速度，同时也论述了它在实践中的特殊用途。 高压气淬真空炉的各种性能已经得到了证实，现在又做了进一步改进，即将原来的气体流动系统改进成可以在炉腔内从顶部和底部或者顶底结合交替地对负载进行淬火，这就使得整个负载温差最小，负载淬火均匀。其循环气流强度可随时调到所需要的值。 本文还对该新型炉的某些实验给以讨论。
Hardening of molds and tools with the use of high-pressure gas-quenched vacuum furnaces is on the rise and has now succeeded in hardening large and small forged castings made from cold-worked steel or hot-worked steel. Larger size high-speed steel cutter after gas quenching has also been a high thermosetting, good toughness, excellent wear resistance. This article focuses on the quenching rate that can be achieved with high-pressure gas quenching, and also discusses its special purpose in practice. The various properties of high-pressure gas-quenched vacuum furnaces have been demonstrated and further improvements have been made to improve the original gas flow system so that the load can be alternately quenched in the furnace chamber from the top and the bottom or from the top and bottom It makes the minimum load temperature difference, load quenching uniform. The intensity of the circulating air flow can be adjusted to the desired value at any time. This article also discusses some of the experiments of this new furnace.