Repair of inner holes of mechanical parts
1. Technical Scope
Bearing position, keyway, hydraulic rod, piston ring groove, roller, cylinder block, cylinder liner, inner hole of outer sleeve, crankshaft, gear shaft, rudder stock, rudder shaft, rolling, roller, rotor shaft, transmission shaft, shaft resistance Repair by grinding (laser cutting, laser drilling more than 10 wires); repair damage, scratches, strains, bruises, collapsed corners, pits, etc. of various imported and domestic complex precision molds; can repair large Precision equipment parts are repaired on site without disassembly; it can also give the parts surface wear resistance, corrosion resistance, high temperature resistance and other properties. Metallurgical bonding at room temperature, the repair site has strong bonding force, wear resistance, impact resistance, no internal stress, no thermal deformation, no cracks, no annealing, softening, no potential effects of breakage, cracking, and no processing Installed directly on the machine, the hardness can be adjusted according to user needs (HRC can reach 60 degrees).
We are adhering to the business tenet of "quality for survival, reputation for development, and service as promise", and we are dedicated to providing more customers with excellent products and professional services.
2. Cases
Repair of inner hole of imported electric spindle
Features and applications of cold fusion technology of resistance at room temperature
During the whole welding repair process, the parts do not generate heat, deform, crack, or anneal softly, which is suitable for the abrasion repair of various precision parts and small parts;
Conformal welding repair, the thickness of the weld repair layer is uniform, the benchmark is not easy to change, and it can be applied to the wear repair that cannot be machined;
According to the special performance requirements of the worn parts of the parts, by selecting different repair materials, the hardness of the repair layer at the wear part of the welding layer can reach HRC62～68, and the anti-corrosion performance can be the same as that of stainless steel;
There is a wide range of selection of supplement materials, according to performance requirements, it can be various materials of flakes, silk, powder, and chips. For the special repair of some parts of unknown material, when the repair material must be the same, scrap or powder can be made from unimportant parts of the part as a supplement. This technology completely breaks the forbidden zone of historical repair technology;
It can be widely combined with electric brush plating technology to repair the wear and scratch of various parts;
It can be widely used in combination with gluing and coating technology to repair damage and leakage of various parts.
Feature application
1. It is widely used in combination with resistance cold melting technology to repair the wear and scratches of various parts;
2. During the repair process, the parts are always at room temperature without internal stress and deformation;
3. Accurate control of the repair amount, which can perform conformal repair of complex curved surfaces;
4. It can effectively improve the mechanical properties and surface finish of the repair site. The hardness is HRC52～58, the wear resistance is 2～3 times that of 45# steel quenched and tempered, the corrosion resistance is 1～1.5 times that of stainless steel, and the surface finish is above;
5. It can be repaired locally in any worn position of the part, that is, repaired wherever it is worn, and there will be no unnecessary dimensional changes in the unworn area;
6. High-precision, high-strength repair of various precision and complex parts without disintegration.
Repair features
During the repair process, the parts are always in a normal temperature state, no internal stress, no thermal deformation, no cracks, no annealing, no softening phenomenon, no potential effects of breakage or cracking.
It has high bonding strength, compactness and non-shedding, abrasion resistance, impact resistance, compression resistance, and reliable leak-stopping performance.
Special supplement material, excellent performance. The hardness can reach up to HRC58-64, the wear resistance is 2-3 times that of 45# steel quenched and tempered (HRC38-42), and the corrosion resistance is 1-1.5 times that of stainless steel.
Advanced technology, no special requirements on the material and shape of repaired parts. Various damaged parts with certain materials and unknown materials, as well as composite materials such as chrome plating and copper plating on the surface can be repaired.
Modify the local wear of parts. That is, by selecting repair materials with different performance characteristics, the mechanical performance of the repaired part is higher than the material performance before repair. Therefore, the local area of the part subjected to stress and wear can not only work normally, but also from the hardness, wear resistance, Corrosion resistance and other aspects have exceeded the performance of the new product before wear.
The repair position is accurate and flexible, and it can be repaired in various shapes, various inclined planes and small spaces that cannot be dismantled.
The amount of repair is controllable and accurate, and the surface finish of the repair site is high (above?). After the repair, it can be mechanically processed or directly installed without processing.
The repair cycle is short, the repair speed is fast, and it can be repaired without disintegration on site. In special circumstances, it can also be repaired and produced.
Shanghai Duomu Industrial Co., Ltd. is a high-tech industry specializing in power supply development. Welding power supply is my key project. The series of welding machines developed have reached or exceeded the international advanced level, and are well recognized by customers and have a wide customer base. And popularity. The products are professionally used for welding of precision parts and thin plates, surfacing welding of valves, rolls, picks, etc., welding repair of molds, mechanical shafts, etc., and have been widely used in electronic appliances, coal mining machinery, aerospace and many other fields.
