Moreover,some surface procession technics experiments such as SNC common penetration and oxygenation procession ,RE-SNC common penetration procession and RE-SNC common penetration and oxygenation procession are separately carried out on H13 steel .

• 另外，对H13钢分别进行了硫氮碳(SNC)共渗加氧化处理、稀土(RE)-SNC共渗处理及稀土(RE)-SNC共渗加氧化处理等表面处理工艺试验；