surfacingComposite wear-resistant plateUsing ordinary steel plate as the base material, the surface is welded with a chromium carbide layer, which gives the steel plate higher strength. Therefore,Hardfacing Wear PlateThe quality is mainly determined by the welding wire and welding process. There are many detailed classifications for wear-resistant welding wire, which can be divided into single-layer welding wire, double-layer welding wire, and multi-layer welding wire. From the perspective of usage categories, it can be divided into various repair welding wires and gas shielded welding wires. Smooth wire feeding, stable arc, and uniform diameter. The welding wire has less splashing, less smoke and dust, and high deposition efficiency. Basically, each package of welding wire is a complete welding wire without seams. The welding wire with the above characteristics is a quantitative welding wire.
The specifications of 1.2mm, 1.6mm, 2.4mm, 2.8mm, and 3.2mm are divided according to the thickness of the welding wire. Different specifications of welding wire have different hardness, and the hardness of the welding wire can reach HRC55 or higher, the higher the better. The content of carbon and chromium determines the hardness of the welding wire. The carbon content of basic welding wire is about 3.0-5.0, and the chromium content is 15-30. The surface butt welding layer should have good impact resistance and be less prone to detachment, which is the advantage of welding wire overlay. Welding wire can be further subdivided according to different industries. For example, if there is a manufacturer, the welding wire can be divided into specific categories such as cement vertical grinding overlay welding wire, roller overlay welding wire, extrusion roller overlay welding wire, star wheel repair welding wire, etc. Gas shielded welding wire can also be divided into impact resistant welding wire, high-temperature resistant welding wire, gas shielded repair welding wire, and welding wire containing various special elements.
During the welding processwear-resistant plateIn production, the welding plate platform is very important. At present, advanced welding plate platforms are fully automatic multi head platforms. Multi head platforms have higher welding efficiency than single head platforms. The wear-resistant plate welded is not easy to detach from the welding layer and has a large bending. Moreover, the new welding plate platform has a high level of automation, which can control the start stop and height of each weld, and can achieve continuous welding at the breakpoint. The welded bimetallic composite wear-resistant plate should have uniform surface hardness, smooth surface, and the characteristics of small cracks.
In addition, the welding process can not only produce bimetallic wear-resistant plates, but can also be used nowwear-resistant pipeWelding equipment is used for welding in steel pipes to produce wear-resistant plates. The production process uses ordinary straight steel pipes with wear-resistant layers laid inside, thus achieving at least 80mm wear-resistant pipe welding. The production length can reach 3000mm.
It can also be directly welded into the elbow. This process is more effective than rolling tubes with wear-resistant plates, and the components are more durable.
