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China gear drive shaft heat treatment equipment manufacturers

Description: The geared shaft is a very important dynamic force-bearing part, so it needs to meet high strength, good toughness, wear resistance, good fatigue resistance and certain impact resistance. Therefore, not only the material selection is very strict, but also the material processing technology and the gear shaft heat treatment equipment require very high requirements.



Gear drive shaft material introduction


Gear shafts can generally be made of carburized steel, but sometimes quenched and tempered steel, especially large gear shafts. In the repeated trials and adjustments of practical production, the steel for gear shafts has been systemized, and these steels are concentrated, such as CK45, 34CrMo, 42CrMo4, and 34CrNiMo6 series steels in Germany; the steels in the United States are mainly 4130, 4340, 4150, 4140 steel; Japan's steel grades are SCM4, SNCM8 and so on. The purpose of these steel alloying is to make the steel have good hardenability so that the gear shaft can obtain a martensite layer of sufficient thickness after quenching. The manganese, chromium and molybdenum in such elements enhance the hardening. The role of sex is more obvious. The second is to make the gear shaft still maintain good comprehensive mechanical properties after tempering. The addition of carbide forming elements such as vanadium, manganese and chromium can significantly improve the tempering stability.


42CrMo steel

The performance of 42CrMo steel is very good. After normalizing, quenching and tempering, induction hardening and low temperature tempering, the surface hardness can reach HRC50 high hardness, surface wear resistance is good, core hardness can reach HRC35~45. 42CrMo Steel, with high strength and high toughness, good hardenability, high fatigue limit after quenching and tempering and resistance to multiple impacts. It has small deformation during quenching, high creep strength and long-lasting strength at high temperature, and no obvious temper brittleness.

The alloying element Cr, Mo contained in 42CrMo steel. Among them, chromium can increase the hardenability of steel and has secondary hardening effect. It can improve the hardness and wear resistance of carbon steel. When the content exceeds 12%. The steel has good high temperature oxidation resistance and oxidation resistant medium corrosion. The main role of chromium in quenched and tempered structural steel is to improve hardenability. The steel has good comprehensive mechanical properties after quenching and tempering, and chromium-containing carbides can also be formed in the carburized steel, thereby improving the wear resistance of the surface of the material. Molybdenum improves hardenability and heat strength in steel. In quenched and tempered steel, molybdenum can deepen and harden parts of larger sections, improve the tempering resistance or tempering stability of steel, so that parts can be tempered at higher temperatures, thus eliminating more effectively ( Or reduce) residual stress and improve plasticity. Therefore, 42CrMo is often used as the material of the rolling gear drive shaft in production.

Gear drive shaft heat treatment equipment


Gear drive shaft heat treatment equipment



Gear drive shaft heat treatment equipment

1. carburizing furnace, 2. vacuum furnace, 3. trolley furnace, 4. mesh belt furnace, 5. tempering furnace, 6. roaster, 7. box furnace, 8. oil furnace, 9. heating furnace, 10 Nitrate furnace, 11. aging furnace, 12. induction furnace, 13. salt bath furnace, 14. well furnace, 15. hood furnace, 16. annealing furnace, 17. quenching furnace, 18. gas furnace, 19.坩埚 melting furnace, 20. aluminum alloy heat treatment furnace, 21. sintering furnace
 

Gear drive shaft heat treatment equipment



Current gear drive shaft production status

Since 2015, in order to meet the needs of high-quality products and diverse varieties, a large number of advanced gear shaft production lines have been built and rebuilt in China, hoping to obtain better product performance and service life. However, at present, the shaft surface hardness of the gear shaft product is low, the hardened layer is shallow, the anti-flaking and anti-accident ability is weak, and the requirements for use cannot be met. Users are eager to improve the depth and wear resistance of the hardened layer of the gear shaft, and have good fatigue resistance to improve service life and reduce shaft consumption and production costs. Haituo Electromechanical Co., Ltd. is a gear transmission shaft heat treatment equipment manufacturer established under this background. It is hoped that the equipment provided can solve these worries for customers.


Because the gear transmission shaft is a very important and special machining part, the machining difficulty is relatively large. The production of qualified gear drive shafts requires not only a very good machining process, but also a good gear drive shaft heat treatment equipment to support. Haituo Electromechanical currently supplies gear shaft heat treatment equipment with excellent performance and can meet various heat treatment requirements. We hope that customers can consult and order.
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