■ ■ 离子硬化技术 Plasma hardening treatment(PHT)
 
森科公司重视技术创新,“离子硬化技术“于2011年立项,2013年开发成功,在不锈钢表壳、 不锈钢卡套和不锈钢泵阀部件等产品上成功实现应用,填补国内在该项目上的技术空白。 
 Tritree pays attention to technology innovation. The project team of plasma hardening treatment(PHT)was founded in 2011. Two years later, new achievement had been made. PHT was applied successfully on stainless steel watch cases, ferrules and vanes. The achievement filled up the technique blanks of domestic technology

离子硬化技术是一种先进的表面处理技术,基本原理是在真空条件下将氮、碳原子扩渗入工件表面。和传统离子氮化技术相比,工艺过程更稳定, 处理均匀性更好。离子硬化技术特别适合用于提高奥氏体不锈钢(316、304等)的耐磨性,而且不影响耐腐蚀效果。对于含钼的奥氏体不锈钢(316等), 还能提高耐腐蚀性。离子硬化技术可以获得10~50微米厚的硬化层。
PHT is a advanced process which involves diffusion of large quantities of nitrogen or carbon into the surface of parts in the vacuum chamber. The treatment uniformity and stability are better than conventional plasma nitriding. PHT improves the wear resistance of austenitic stainless steel parts without impact on the corrosion resistance. Austenitic stainless steels (e.g. 316)which contain molybdenum even get better corrosion resistance after PHT. The hardening layer thickness can achieved 10μm to 50μm.

增加表面硬度

奥氏体不锈钢表面硬度从200HV增加到1200HV(相当于HRC74),达到工模具钢的硬度水平。
Surface hardness: Increased from 200HV0.05 to 1200HV0.05 comparable with 74 HRC.

 

耐磨性大幅提高

在空气、油和海水腐蚀环境下进行摩擦磨损试验,耐磨性大幅提高。
Wear resistance: Improved strongly in air, oil and seawater.

硬化层与基体结合牢固

硬化层为N/C扩散层,与基体形成牢固的冶金结合,使用过程中无掉皮风险。
Good adhesion: Low risk of delamination because of the metallurgical combination between the diffusion zone and substrate.
 

进一步改善不锈钢耐腐蚀性

硬化层形成单一S相、无Cr的化合物生成,不锈钢的耐腐蚀性得到提升。
Corrosion resistance: Unchanged or even improved without the formation of chromium nitrides and chromium carbides.

 

硬化层韧性好

从基体到硬化层表面,硬度缓缓上升,形成硬度梯度,韧性好。
High toughness: Due to the small hardness gradient from substrate core to hardening layer surface.


硬化均匀

复杂形状零件也可以得到均匀硬化效果。
Uniform hardening: Complex shape parts can be treated.

 

工件形状尺寸不改变

在真空和低温环境下进行处理,工件形状尺寸基本不改变。
No product deformation: Due to vacuum and low temperature process.
 

工艺环保

工艺过程比气体渗和盐浴渗更环保。
Environmentally friendly:Better than conventional gas nitriding and salt bath nitriding.


离子硬化技术应用扩展 Extended application

除奥氏体不锈钢外,离子硬化技术也可以应用于马氏体不锈钢及其它工模具钢,与传统离子氮化相比,硬化均匀性更好、处理工艺过程更稳定。


PHT can be also applied to the martensitic stainless steel and other alloy tool and mould steels. The uniformity and stability are better than conventional plasma nitriding.

离子硬化+镀膜


◆ 表面硬度大于1500HV0.025。
◆ 耐磨性和耐刮擦性优于单一离子硬化处理和单镀硬膜。
◆ 膜基结合力较单镀膜大大提升,由于因为从工件表面到基体的硬度梯度变得更平缓。
◆ 可以获得比单一离子硬化更丰富的外观颜色。

PHT+ Coating Surface
◆ lang="EN-US">hardness: Can exceed 1500HV0.025.
◆ Wear and scratch resistance: Increased significantly compared to single coatinglayer or PHT.
◆ Coating Adhesion: Higher than that of single coating layer applied to a substrate without PHT.
◆ Color: Any decorative or functional coating color can be combined with PHT pre-treatment.

典型应用 Appliction

医疗产业 Medical industry



骨板 Bone plate

钟表行业 Watch industry


表壳 Watch case

流体控制行业 Fluid control equipment industry


球阀 Ball valve

前后卡套 Front and back ferrule