Back Forum New

plugged graphite bearing,plugged graphite bushing

GCr15 steel bearing ring quenching quality of the process
The defect in the common one, bearing ring quenching cooling process


precision linear slides parts are widely used as a quenching medium, the main reason for GCr15 steel bushing is the third stage of the process of oil in the cooling phase (convection) special slow cooling rate.Production use of the past 10, 20, machine oil between 650 ~ 500 ℃ for 20 ~ 50 ℃ / s.Convection period starting around 300 ℃, continued to room temperature, as it happens and the martensite turn temperature requirements of the GEC radial spherical plain bearing smaller cooling speed, so that the bearing parts in the process of quenching deformation and cracking tendency is greatly reduced.But in the way of operation is manual hoist will ring into the oil, the oil ring in the upper and lower movement of frequency and amplitude is controlled by the operator manually, it is difficult to meet the technological requirements, namely the ring in oil dynamic time not less than 3 s/mm.Therefore, in the process of cooling ring often appear the following quality problems: 1) poor hardness uniformity: the same ring divergence HRC hardness > 2, the same ring uniform hardness HRC > 1 or 2.2) ring surface area soft point or local soft point.3) for effective wall thickness > 7 mm ring, microstructure of 45 # steel bushing organization in mesh troostite.


After the plugged graphite bearing,plugged graphite bushing, graphite plugged bronze bushing heat treatment quality analysis in 1998, because of the furnace for quenching cooling adverse to repair tin bronze bushing fire repair rate of 51.5%, ring in the cooling process of defects, and results in the decrease of bearing stiffness, strength, abrasion resistance and fatigue resistance performance degradation.

Bookmark and Share


golden state warriors jerseys
ray ban sunglasses
prada outlet
ralph lauren
ed hardy
nike roshe run
louis vuitton belt
coach factory outlet
louis vuitton handbags
nike tn pas cher
giuseppe zanotti sneakers
ray ban sunglasses
rolex watches
gucci shoes
canada goose outlet
jordan 3
christian louboutin outlet
michael kors outlet
gucci outlet
uggs outlet
chaussures louboutin
hilfiger outlet
louis vuitton outlet
steelers jerseys
jordan femme
dallas mavericks jerseys
cheap oakley sunglasses
manolo blahnik
michael kors outlet
abercrombie and fitch
christian louboutin outlet
coach outlet
oakley sunglasses
louis vuitton handbags
michael kors
burberry handbags
ray ban pas cher
michael kors uk
nike running
michael kors handbags
michael kors
kate spade outlet
michael kors outlet
polo ralph lauren
ray ban wayfarer
coach outlet
polo ralph lauren
kobe bryant shoes
true religion
louis vuitton paris
hollister clothing
ugg boots
heat jerseys
new england patriots jerseys
minnesota vikings jerseys
calvin klein
manchester united jersey
christian louboutin pas cher
michael kors outlet
chanel handbags
oakley sunglasses
coach outlet
ray ban sunglasses
louis vuitton handbags
oakley sunglasses
ray ban canada
christian louboutin uk
ralph lauren uk
mcm bags
polo outlet
michael kors bags
ray ban sunglasses
celine outlet
replica watches
adidas neo
coach outlet
louis vuitton outlet
rolex watches
adidas stan smith
oakley canada
ray ban sunglasses
timberland boots
michael kors canada
christian louboutin uk
coach outlet
louis vuitton handbags
nike soccer shoes
giuseppe zanotti
adidas nmd r1
nike football boots
christian louboutin paris
canada goose
michael kors outlet
chelsea jersey
cavaliers jerseys
louis vuitton outlet
beats by dre
washington wizards jerseys
seattle seahawks jerseys
michael kors uk
20173.23chenjinyan

TOP

Back Forum