The glass-to-metal sealing structure of PVD vacuum coating equipment needs to meet the requirements of sealing parts with baking resistance, a certain strength, air tightness, and good electrical insulation performance. The common types of glass-to-metal sealing for vacuum instruments are matching sealing, mismatching sealing, and transition sealing.

1. Matching and sealing

The sealing form means that the difference between the linear expansion coefficients of glass and metal within a certain temperature range is less than 10%.

2. Mismatched sealing

The sealing form means that the difference between the linear expansion coefficients of glass and metal is greater than 10%.

3. Transition sealing

When the linear expansion coefficient of glass and metal has a large difference, one or several glasses with a linear expansion coefficient between glass and metal can be used for transition sealing.

In terms of structure, the glass-to-metal sealing type of vacuum equipment can be divided into tube sealing structure, enclosure structure, and disc sealing structure. The commonly used tube sealing structure is a butt structure of a metal round tube and a glass round tube. Such as the sealing of glass tube and Kovar flange joint; the enclosing structure refers to a structure that seals around a metal rod surrounded by glass, such as vacuum vibration film gauge lead, curved injection gauge lead, Ultra-high vacuum ionization gauge lead wire, etc.

Glass Multi-Channel Air Intake System Decorative Vacuum Coating Machine

Full machine body with high-quality stainless steel304, double-layer cooling water design.

Several sets of newly developed ion arc sources are reasonably equipped to effectively ensure the stability and uniformity of arc source sputtering.

The multi-channel air intake system is adopted to accurately control the gas flow to meet your requirements for a variety of compound films.

Combined with pulse bias technology, the electric particle energy is greatly improved, so as to obtain excellent film adhesion and finish.

The equipment is mainly widely used in: hardware products, glass crafts, ceramic crafts, such as bathroom products, watches and clocks, knives, molds, crystal glass, golf tools, lamps, glasses frames, ceramic tiles, floor tiles, etc.

Process materials: stainless steel, copper, iron, zinc alloy, aluminum, ABS, glass, ceramics, etc.

The surface state of the process materials: bright surface of ordinary electroplating, dumb surface (semi dumb, full dumb), process electroplating wrinkles, brush, raindrops, etc.

The plating colors are: translucent, gold, silver, rose gold, black, green, blue, purple, rainbow, TiN、ZrN、TiAlN、TiC、TiCN、CrN、Al2O3, etc.