真空渗碳技术：常采用高纯C2H2(纯度≥99.9%)为渗碳气体，由于是在真空环境下进行渗碳和后续热处理，且渗碳介质不含“氧气”，从而避免了传统气氛渗碳容易出现的渗碳层氧化和脱碳的缺点。除具有真空热处理的优点之外，还具有下列优势：
Vacuum carburizing technology: high purity C2H2 (purity ≥ 99.9%) is often used as carburizing gas, because carburizing and subsequent heat treatment are carried out in vacuum environment, and the carburizing medium does not contain "oxygen", so as to avoid the shortcomings of carburizing layer oxidation and decarburization easily occurred in traditional atmosphere carburizing. In addition to the advantages of vacuum heat treatment, it also has the following advantages:
1、表面质量好：真空渗碳表面不氧化、不脱碳，保持金属本色；不产生内氧化（黑色组织），有助于提高零件的疲劳强度；能极大提高产品的可靠性和使用寿命。盖土网 防寒布 麻绳 油麻绳 麻刀 沥青麻绳 静压造型线 自动浇注机 铸铁拍门 钢制拍门 玻璃钢拍门
1. Good surface quality: no oxidation and decarburization on the surface of vacuum carburizing, keeping the natural color of metal; There is no internal oxidation (black structure), which is helpful to improve the fatigue strength of the parts; It can greatly improve the reliability and service life of products.
2、工件变形小：真空渗碳工件加热时，加热的速度连续可控，可减小工件的内外温差变形趋势；渗碳完成后，淬火方式为真空淬火，大幅减小工件的淬火变形；减小后期的加工量，节省加工成本。
2. Small deformation of workpiece: when vacuum carburizing workpiece is heated, the heating speed is continuously controllable, which can reduce the deformation trend of internal and external temperature difference of workpiece; After carburizing, the quenching method is vacuum quenching, which greatly reduces the quenching deformation of the workpiece; Reduce the amount of later processing, save processing costs.