| Customization: | Available |
|---|---|
| Type: | Stainless Steel Heating Equipment |
| Structure: | Horizontal Type |
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Good Temperature Uniformity / Fast Heating Speed / High Pressure Accuracy /Good Safety Performance / Fast Cooling Speed
Difusion welding refers to a solid-state welding method in which a workpiece is pressurized at a high temperature, but does not produce visible deformation and relative movement. Difusion welding is especially suitable for the joining of dissimilar metal materials, heat-resistant alloys and new materials such as ceramics, intermetallic compounds, composite materials, etc., especially for materialsthat are difficult to weld by fusion welding methods, difusion welding has obvious advantages and has attracted more and more attention.
Diffusion welding can weld almost all metals or non-metals without reducing the performance of the welded material, as the substrate does not overheat or melt. It is particularly suitable for fusion welding and other materials that are difficult to weld, such as active metals, heat-resistant alloys, ceramics, and composite materials. For the same type of material with poor plasticity or high melting point, as well as dissimilar materials that are immiscible or produce brittle intermetallic compounds during fusion welding, diffusion welding is a more suitable welding method. The diffusion welded joint has good quality, and its microstructure and properties are similar or identical to the base metal.
There are no fusion welding defects, overheating structure, and heat affected zone in the weld seam. Welding parameters are easy to precisely control, and joint quality and performance are stable during mass production. Welding parts have high accuracy and small deformation. Due to the low pressure applied during welding, the workpiece is mostly heated as a whole and cooled with the furnace, resulting in minimal overall plastic deformation of the welded part. The welded work piece is generally not subjected to mechanical processing.
It is possible to weld large section workpieces with relatively low welding pressure, so the tonnage of equipment required for large section welding is not high, making it easy to achieve. It can weld workpieces with complex structures, difficult to access joints, and significant thickness differences, and can simultaneously weld many joints in the assembled parts. Fast cooling speed: optional with a fast cooling system under a gas pressure of 2 bar to 10 bar, ensuring fast cooling and efficient operation of the workpiece after hot pressing;
Specifications
| No. | Model | Chamber Size | Ultimate Vacuum (Pa) | Pressure (kN) | Operating temperature (ºC) | Punch Qty. | Cooling Gas |
| D6MO14 | VHDBmo-60/60/60-1400 | 600*600*600 | 6.7*10-4 | 500-5000 | 1400 | 1/2 | 2Bar |
| D8MO14 | VHDBmo-80/60/80-1400 | 800*600*800 | 6.7*10-4 | 2000-10000 | 1400 | 1/2 | 2Bar |
| D10MO14 | VHDBmo-100/60/100-1400 | 1000*600*1000 | 6.7*10-4 | 3000-10000 | 1400 | 1/2 | 2Bar |
Diffusion welding is especially suitable for small parts that require vacuum sealing, equal strength of joints and base metals, and no deformation. It isthe only way to manufacture vacuum-sealed, heat-resistant,vibration-resistant, and deform-free joints, so it is widely used in industrial production. Diffusion welding methods are used for the welding of metals and non-metals in electric vacuum equipment,and the welding of cemented carbide, ceramics, high-speed steel and carbon steel in cutting tools.
Various titanium alloy components on supersonic aircraftare manufactured using the super plastic forming-diffusion welding method.
The joint performance of diffusion welding can be the same as that of the base metal, and it is especially suitable for welding dissimilar metal materials, non-metallic materials such as graphite and ceramics,dispersion strengthened superalloys, metal matrix composites and porous sintered materials.
Diffusion welding has been widely used in the manufacture of reactor fuel elements, hydraulic pumpwear parts, drilling rig oil shoe parts, corrosion resistant parts, honey comb structural plates, electrostatics, impellers, stamping dies, filtertubes, and electronic components.
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