Jiaxing bearing small make up to tell you about deep groove ball bearing failure checking method of cooling medium and quenching

There is rotational, have HRB bearing ( ) Jiaxing bearing group sales co. , LTD. ( The company) Is bearing group co. , LTD. Established in jiaxing spot sales window, specializing in HRB brand bearings, facing the whole country, the existing stock 50 million yuan, covers the whole bearing, have very strong spot supply, is the group's retail sales center. In deep groove ball bearing grinding, grinding wheel and workpiece contact zone, consume large amounts of energy, to produce a large number of grinding heat, local transient high temperature caused by grinding area. On the basis of the theory of linear motion heat source heat transfer formula derivation, calculation or by the method of infrared ray and measured experiment under the condition of instantaneous temperature thermocouple method, can be found in 0. 1 to 0. The grinding area within 001 ms instantaneous temperature up to 1000 ~ 1500 ℃. The instantaneous high temperature, which would have made certain depth on the surface of the work surface to produce high temperature oxidation, amorphous group, high temperature tempering, secondary hardening, and even burn cracking and other changes. In the process of deep groove ball bearings use, vibration, noise, improper use of lubricant will cause serious damage to the bearing, directly affect the service life of the bearing, in order to better use bearing, improve production efficiency it is necessary for us to understand some of the improper way of using the bearing harm and some simple bearing maintenance. Different deep groove ball bearing components of the composition, shape, design, size, the mechanical performance requirements are different, the quenching method is different, generally speaking each bearing steel all have fixed C curve, and decided the bearing quenching cooling medium of the organization and mechanical properties is not standard, so do focus on analysis of these factors will be specific, in the actual bearing parts in the production process of the production of heat treatment defect, and the cooling medium of deep groove ball bearings are directly related. In bearing heat treatment furnace heated to completely after refining, in order to strictly technical parameters requirements, should be treated after quenching, after cooling the bearing to get martensite structure, bearing of the cooling rate must be greater than the critical cooling rate, speed too fast, but the cold causes artifacts volume shrinkage and organizational change drastically, cause a lot of internal stress. Therefore in the conditions of the martensite 'F', so it is important to note that the cooling speed, so as to get qualified martensite. It is particularly important to choose suitable quenching medium, it determines the deep groove ball bearing parts the organization and performance after quenching, quenching medium usually has a solid, liquid and gas are three, according to the bearing when quenching medium changes of state is divided into changes of state and change of state class. Produced in the ease of selection of quenching medium is one of the most important, it determines the deep groove ball bearing quenching after the overall performance of an organization and, in general the quenching medium of gas and liquid, and solid, the comparison of gas with relatively less, and in accordance with changes of the quenching time and can be divided into biological state change and no change of state of the two classes. If you are more than HRB bearing the author introduces the bearing inspection and replacement of interest or have any questions, please click on the website on the right side of the online customer service or call:, you close the way of jiaxing bearing purchasing advisors. - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, The company) Reprint please indicate the source