Mobile：
13403177888
search ： Motorcycle Sprocket
search ： Motorcycle Sprocket
Built in 2000，Renqiu WanHe Motorcycle Parts Co.,LTD，specialized in manufacturing sprockets and gear wheels for more than ten years，lies in Renqiu city，nearby 106 national highway and enjoys the convenient transportation.And it is only 5 lilometers to jingjiu railway. We have160 staffs，including ten research personnels . We have passed ISO9001 certification . The output reaches 30 million sets every and our prod-uctsare exported to many countries in southeast Asia, Europe, South America , Africa and more . "credit is the basis, quality is the first" is our sus-tained business conception . With advanced tech-nology and excellent workmanship, We warmly welcome you to pursue mutual development.
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Built in 2000，Renqiu WanHe Motorcycle Parts Co.,LTD，specialized in manufacturing sprockets and gear wheels for more than ten years，lies in Renqiu city，nearby 106 national highway and enjoys the convenient transportation.And it is only 5 lilometers to jingjiu railway. We have160 staffs，including ten research personnels . We have passed ISO9001 certification . The output reaches 30 million sets every and our prod-uctsare exported to many countries in southeast Asia, Europe, South America , Africa and more . "credit is the basis, quality is the first" is our sus-tained business conception . With advanced tech-nology and excellent workmanship, We warmly welcome you to pursue mutual development.
MORE +
Built in 2000，Renqiu WanHe Motorcycle Parts Co.,LTD，specialized in manufacturing sprockets and gear wheels for more than ten years，lies in Renqiu city，nearby 106 national highway and enjoys the convenient transportation.And it is only 5 lilometers to jingjiu railway. We have160 staffs，including ten research personnels . We have passed ISO9001 certification . The output reaches 30 million sets every and our prod-uctsare exported to many countries in southeast Asia, Europe, South America , Africa and more . "credit is the basis, quality is the first" is our sus-tained business conception . With advanced tech-nology and excellent workmanship, We warmly welcome you to pursue mutual development.
MORE +
Built in 2000，Renqiu WanHe Motorcycle Parts Co.,LTD，specialized in manufacturing sprockets and gear wheels for more than ten years，lies in Renqiu city，nearby 106 national highway and enjoys the convenient transportation.And it is only 5 lilometers to jingjiu railway. We have160 staffs，including ten research personnels . We have passed ISO9001 certification . The output reaches 30 million sets every and our prod-uctsare exported to many countries in southeast Asia, Europe, South America , Africa and more . "credit is the basis, quality is the first" is our sus-tained business conception . With advanced tech-nology and excellent workmanship, We warmly welcome you to pursue mutual development.
MORE +
It is stipulated that cemented carbide balls with different diameters shall be used as test balls, and steel balls shall not be used as test balls. The upper limit of Brinell hardness test can reach 650 HBW. Generally, it can be used to test the hardness of annealed, normalized and quenched and tempered parts. Under special...
Preparation before start-up: the new furnace or repaired equipment must be started after acceptance, and the following preparations shall be made. The electrician shall check whether the electrical equipment is normal, each current circuit breaker shall be in the off position, and the manual cycle reset switch shall be in t...
Also known as gas nitriding. Nitrocarburizing is a kind of chemical heat treatment process in which two kinds of active atoms of nitrogen and carbon penetrate into the surface of the workpiece at the same time. Generally, this process is adopted for the workpieces with less thickness and strict deformation. In particular, this process can improve the anti bite and corrosion resistance. The effect of rack and ring gear after treatment is very obvious. The treatment temperature is about 570c.
The causes include unqualified quality of gold treatment, improper nitriding process, large amount of grinding before nitriding, too high nitrogen content on the surface, high quenching and tempering temperature, overheating and decarburization on the surface. The countermeasures include selecting qualified materials, improving process, reducing grinding amount and grinding in several times, strictly controlling ammonia decomposition rate, re quenching and tempering after normalizing, and removing decarburization layer.
Because the frequency of induction power supply is too high, the power is too high, the quenching fixture is biased, the top and bottom centers of quenching machine are not concentric, and the gap between inductor and gear is uneven, which will cause induction hardening cracks. When the single tooth of the gear with large modulus is heated, the adjacent tooth top and tooth surface are affected by the heat because the adjacent teeth are not shielded. When the heated single tooth is cooled, the heated tooth top part and tooth surface are also cooled, resulting in quenching cracks.
When the steel grade and gear blank size have been determined, whether the quenching and tempering depth meets the requirements can be judged by calculating the section hardness distribution with known gear material and round bar diameter. When the gear size parameters are determined, it is necessary to select the appropriate steel to meet the technical requirements of quenching and tempering, and the determination method of calculation section size can be used. This method mainly considers the approximate maximum section size of the gear blank.
Mobile：13403177888 Mr. Wang
Address：Renqiu City, Hebei Province, China
Renqiu WanHe Motorcycle Parts Co.,LTD
Mobile：
13403177888
