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Thermal Spray
PMT has the most complete thermal spraying capacity in Taiwan, we can spray all kinds of metals, ceramics and cermet.
Service industry includes basic industries(steel, petrochemical, pulp-paper), power producer(hydropower plant, thermal power plant, cogeneration), valve, automotive industry(cylinder wall, gearbox components) and solid oxide fuel cell (SOFC).
Key account includes China Steel Corporation, Formosa Plastics Group(Formosa Ha Tinh Steel Corporation), Yieh United Steel Corporation, Taipower, Cheng Loong Corporation etc.
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ARC Spray
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Flame Spray
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HVOF
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Plasma Spray
Cold Spray
The cold spray process what PMT provide is a high pressure technology, impact the metal powder on the surface of the substrate at high speed by high-pressure inert gas. Metal particles are stacked into thick films during superplastic deformation. The difference with thermal spray is that the metal particles are not melted at high temperature in the high pressure cold spray process. That makes a denser, almost hole-free, oxide free, high purity metal film.
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- Kinetic energy of flying particle→Intensive plastic deformation of particle→Coating formation
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- Choice of layer material
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Metal: Al, Cu, Ni, Ti, Ag
Alloy: Stainless steel, Aluminum alloy, nichrome
- Layer Properties
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Thickness: 0.1mm~20mm or more
High density, high electrical conductivity, high thermal conductivity
- Choice of substrate material
- Metal, alloy, ceramics, high polymer
Process Properties
- ●Full solid‑state process
- ●Environmentally friendly
- ●High deposition rate
- ●Automatic production, stable quality
Vacuum Brazing
In vacuum brazing, the filler metal, is put in between two base materials that will be jointed. The filler metal will be melted subsequently in the vacuum furnace. The molten filler metal will spread in between the two solid base materials by Capillary and Wetting Effect, and then metallurgical bonding with the base materials. The two base materials joint complete after cooling.
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- Filler Melting
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- Capillary Action
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- Wetting Behavior
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- Cooling & Solidify
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- Brazing
Application
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◎Parts of Semiconductor Process Equipments(Showerhead, Cooler,etc.)
◎Target Backing Plate
◎Cooling plate
◎Heat dissipation (pin fin for heat fin, high-power thermal module, etc.)
◎Wide area 2 dimensional joint
Properties
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◎Joint of similar materials, including active metal(EX: Al, Ti, etc.)
◎Joint of heterogeneous materials, including metal and ceramic
◎No oxidation, high precision, high strength
Application
Al, Cu and alloy vacuum brazing interface
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Al-Al Brazing
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Cu-Cu Brazing
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Cu-Al Brazing
Hardfacing
Hardfacing on large workpiece to improve wear resistance.
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Open Arc
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Submerge