论文部分内容阅读
汽车齿轮渗碳(或碳氮共渗)、淬火后,每炉都必须检验内试祥金相,以保证内在质量,试样形状就采用该产品的齿块。作为现场批量生产的护前检验,要做到快而准,即快速地将渗碳(或碳氮共渗)前的试样加工平整规距,无毛刺。这样在切割机切割时才便于装夹,得到的试样才规整,精磨和抛光都不产生例角,也不刮破抛光的毛呢。具体做法是:当试样从齿轮上切断后,再空切一刀,使试样光滑,然后试样在380～400号水砂纸上着点水,蘸点抛光粉磨一分钟左右,再用M4金相砂纸磨一分钟左右,抛光
Car gear carburizing (or carbonitriding), after quenching, each furnace must be tested within the auspicious phase, in order to ensure the inherent quality, the shape of the sample to use the product of the tooth block. As a front-line mass production inspection, to be quick and accurate, that is, quickly carburizing (or carbonitriding) before the sample processing flat gauge, no burrs. This cut in the cutting machine when it is easy to clip, get the sample neat, fine grinding and polishing have no example angle, nor scraping polish wool. The specific approach is: When the sample cut off from the gear, and then cut an empty knife, the sample is smooth, and then the sample in the water on the No. 380-400 point of water, dipped in polished grinding for about a minute, then M4 Metallographic sandpaper grinding for about a minute, polishing