Causes of Brake Drum Cracking
- Categories:Industry Information
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- Time of issue:2019-08-21 08:40
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(Summary description)Brakedrumisalsocalledbrakepot.Brakedrumisakeypartinthebrakesystemofautomobiles.Thequalityofbrakedrumdirectlydeterminestheeffectofself-braking,andevenrelatestothesafetyofdriving.Therefore,itisveryimportanttoselectaqualifiedbrakedrumforautomobiles.Belowisasmallbraidtoletyouknowwhatcausesthebrakedrumcracking?Duringthebrakingprocess,becauseofdryfrictionandhighfrictionforce,thebrakedrumoftenbecomesoverheatedandreddened.Atthistime,workersoftenpourtapwateronthebrakedrumtoreduceitstemperature.Thebrakedrumrubscontinuouslyandintenselytoproduceheat,whichmakesitssurfacetemperaturerise.Usingtapwatertoreducethetemperatureofbrakedrumhasplayedaroleinquenching,whichincreasesthelocalhardnessofthesurface,internalstressandcoldbrittleness.Atthesametime,duetotherepeatedactionoftangentialforce,localcrackinitiationoccursatthesurfacelayerofmassivecarbidesandinclusions.Withtheeffectofirregularalternatingimpactforce,thecrackpropagationisaccelerated.
Causes of Brake Drum Cracking
(Summary description)Brakedrumisalsocalledbrakepot.Brakedrumisakeypartinthebrakesystemofautomobiles.Thequalityofbrakedrumdirectlydeterminestheeffectofself-braking,andevenrelatestothesafetyofdriving.Therefore,itisveryimportanttoselectaqualifiedbrakedrumforautomobiles.Belowisasmallbraidtoletyouknowwhatcausesthebrakedrumcracking?Duringthebrakingprocess,becauseofdryfrictionandhighfrictionforce,thebrakedrumoftenbecomesoverheatedandreddened.Atthistime,workersoftenpourtapwateronthebrakedrumtoreduceitstemperature.Thebrakedrumrubscontinuouslyandintenselytoproduceheat,whichmakesitssurfacetemperaturerise.Usingtapwatertoreducethetemperatureofbrakedrumhasplayedaroleinquenching,whichincreasesthelocalhardnessofthesurface,internalstressandcoldbrittleness.Atthesametime,duetotherepeatedactionoftangentialforce,localcrackinitiationoccursatthesurfacelayerofmassivecarbidesandinclusions.Withtheeffectofirregularalternatingimpactforce,thecrackpropagationisaccelerated.
- Categories:Industry Information
- Author:
- Origin:
- Time of issue:2019-08-21 08:40
- Views:
Brake drum is also called brake pot. Brake drum is a key part in the brake system of automobiles. The quality of brake drum directly determines the effect of self-braking, and even relates to the safety of driving. Therefore, it is very important to select a qualified brake drum for automobiles. Below is a small braid to let you know what causes the brake drum cracking? During the braking process, because of dry friction and high friction force, the brake drum often becomes overheated and reddened. At this time, workers often pour tap water on the brake drum to reduce its temperature. The brake drum rubs continuously and intensely to produce heat, which makes its surface temperature rise. Using tap water to reduce the temperature of brake drum has played a role in quenching, which increases the local hardness of the surface, internal stress and cold brittleness. At the same time, due to the repeated action of tangential force, local crack initiation occurs at the surface layer of massive carbides and inclusions. With the effect of irregular alternating impact force, the crack propagation is accelerated.
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