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Contact SU SHI
Service Hotline 0755-29721819
Fax0755-27293730
Fax0755-27415741
E-MAIL: 2727255832@qq.com
CompanyAddress: 14 BaiSha Road,Second Industrial Zone,Shenzhen manholeNewbridge
Products
| Vacuum nitriding | |
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Nitridingtreatment:refers to acertain temperatureata certainmediamanipulationnitrogen atomsintochemicalheat treatment processworkpiecesurface.Afternitriding treatmentproducts withexcellent wear resistance, fatigue resistance, corrosion resistance andhigh temperature properties. OrderHotline:400-6388-689 |
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Parts of the surface cleaning before nitriding most part, you can use the gas to oil to the oil law immediately after nitriding . Some parts also need to use gasoline to clean better, but in the final process before nitriding method , if the use of polishing, grinding , polishing , etc., that may have hindered nitrided surface layer , resulting in post- nitriding, the nitride layer is uneven or bending and other defects. At this point should adopt one of the following two methods to remove the surface layer . Before the first method in the first nitriding gas to the oil . Then use the alumina powder to the surface for abrasive cleaning. The second method is about to be phosphate coating surface treatment (phosphate coating).
Nitriding furnace air exclusion
The parts to be treated is placed in the nitriding furnace , and heat sealed to the lid , it must be heated to 150 ℃ previous work for removing air furnace .
The main function is to exclude the furnace to prevent contact with air when ammonia decomposition occurs explosive gas , and be treated to prevent surface oxidation and stents. Gas they use ammonia and nitrogen that is two .
Exclude air furnace essentials as follows :
① parts to be treated properly installed sealed lid will begin through anhydrous ammonia, which may be more traffic as much as possible .
② automatically control the temperature of the furnace is set and started at 150 ℃ heated ( furnace temperature not higher than the note 150 ℃).
③ when the air vent in the furnace to below 10% , or the exhaust gas containing more than 90% of NH3, then the furnace temperature was raised to nitriding .
Su's heat treatment Co. Ltd. was founded in 1990, after decades of development, scale is continually expanding, is located in Shajing Town Baoan District Shenzhen City Bridge second industrial zone, covering an area of 3000 square meters, the main business is to take all the metal, alloy steel, beryllium copper, heat treatment of high speed steel, cryogenic treatment (-196 C), nitrogen gas, liquid nitrogen, QPQ salt bath production line, high-frequency quenching, blackening and carburizing, the surface of hard and stainless steel processing.
The company is equipped with power of heat treatment technology, established a perfect quality testing equipment, equipped with vacuum quenching furnace, vacuum furnace, pit furnace, furnace, liquid nitrogen atmosphere furnace, rotary furnace, large mesh belt furnace, improve metallographic inspection equipment, material failure analysis, scientific management and complete, rigorous technology, skilled operation.
Company will be excellent quality and perfect service, and actively challenge, satisfy customer demand, has passed ISO9001:2000 in 2003 September (SGS) international quality certification. Has now become a reputable manufacturers.
Su's heat treatment (Shenzhen) Co., Ltd. Guangdong ICP No. 14020634
service hotline: 0755-27291255
Fax: support for 0755-27293730, 0755-27415741
E-MAIL:sushirechuli@163.com
Company address: Shenzhen, Baisha bridge Second Industrial Zone No. 14
