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CVD 涂层服务

纳狮 CVD 化学真空气相沉积涂层服务主要集中在高硬度切削工具、防粘/冲压成型和其他工具类别。纳克绍 CVD 可以沉积 5 微米至 20 微米厚的涂层，使用 TiN、TiCN 和 α-氧化铝（Al2O3）形成单层或多层涂层。CVD 沉积工艺的温度通常在 900°C 或以上，涂层时间为 10 小时，仅适用于耐高温基材。

CatalogsCVD 涂层服务

氧化铝涂层车削刀片涂层 CVD 涂层

Guide to CVD Coating of Cemented Carbide CNC Tools
类型	说明		Thickness(μm)	Coating Composition	Friction	颜色	应用
KA	TiN		13~17	TiCN+Al2O3+TiN	0.3	Gold color	For general steel parts
KB	TiCN		13~17	TiCN+Al2O3	0.4	Black Diamond	Gray cast iron, ductile iron
KC	TiAlN		13~17	TiCN+Al2O3+TiN	0.4	Gold – Black	Mild steel, alloy steel
KD	AlTi基		13~17	TiCN+Al2O3	0.4	Gold color	High overall performance
KE	AlTiSi基		9~9	TiCN+Al2O3+TiN	0.3	Gold color	Stainless steel and other anti-adhesive steel

Differences between CVD and PVD coatings

Process Characteristics	PVD Physical Vapor Deposition	CVD Chemical Vapor Deposition
Vacuum	10-2 to 10-4 mbar	Atmospheric pressure or low vacuum
Temp	200-450℃	900-1050℃
Sedimentation limitation	The law of sight	Any surface that the gas can come into contact with
Coating process	Physical vapor deposition	Chemical vapor deposition
Film thickness	1-7 μm, or customized	5-12 μm, max. 20 μm.
Substrate Limitations	Non-vacuum volatile	Long-term high temperature resistance
Surface finish	0.03-0.05μm	0.1
Reprocess	No heat treatment required	Tool steels need to be post-treated to modulate hardness
Edge construction	Follows the shape	Regrinding (optional)

古铜色车刀片CVD涂层

CVD is limited to high-temperature resistant materials, and like PVD coating, the surface of the substrate is smooth and free of oil and rust in order to ensure the bonding of the coating.