After quenching mill parts with better performance
Nancy
www.diecastingpartsupplier.com
2015-03-10 17:45:24
Cylinder mill is the largest and most important part of the whole
trip grinding materials carried in the cylinder body , as a result of very hard
material and grinding media, the production of the expansion cylinder friction
is inevitable. To extend the life of the cylinder, a ball mill treatment using
quenching process The main feature is the most effective way.
In general ball mill manufacturer in the economy and in all aspects
to consider , as a general of the box and the housing , we will be cast as the
preferred material because cast iron relatively speaking, the price is cheaper ,
but more favorable performance to meet high load conditions , such as gray cast
iron HT300 has good mechanical properties and chemical resistance, which is
usually used in manufacturing cams, gears or couplings , tube , shell and other
presses . And cast iron compared to the performance of steel , there has been
improved, especially after the steel after quenching , the performance will be
further enhanced.
The need for Ball Mill quenching the steel material , because there
will affect the torsional and bending loads of different operation , the surface
layer of the application will be more affordable , at the same time by the
friction of the surface layer will constantly being worn , so we need to
reinforce the strength and hardness of the surface layer and fatigue resistance
, and the quenching is the only species , small deformation , high productivity
and can effectively enhance the cylinder surface strength steel ball mill method
. According to the different forms of the actual heating , surface hardening
methods that can be implemented Ball Mill induction heating surface hardening ,
flame heating surface hardening and point-contact heating surface hardening .
After quenching this device will have what properties:
1 , the surface hardness . Its surface is high , medium frequency
induction heating quenching components , its hardness than ordinary quenching
hardness 2-3 units higher parts .
2 , wear resistance. After induction hardening machine parts after hardening higher abrasion resistance than ordinary , the main reason is that the hardened layer of martensite grains is relatively small, carbide and high dispersion and high hardness, surface high pressure stress general terms of the decision.
2 , wear resistance. After induction hardening machine parts after hardening higher abrasion resistance than ordinary , the main reason is that the hardened layer of martensite grains is relatively small, carbide and high dispersion and high hardness, surface high pressure stress general terms of the decision.
3, the fatigue strength. High , medium frequency surface hardening
process greatly increases the fatigue strength , sensitivity gap at the same
time will be reduced a lot. For the same material in terms of components , under
certain conditions, the depth of the hardened layer , a hardened layer depth
increases with the fatigue strength is constantly increasing , but when the
depth of hardened layer had burned , its surface is compressive stress , thereby
increasing the depth of the hardened layer Meanwhile fatigue strength but
reduced , member brittleness ball mill when a corresponding increase , and
therefore usually hardened depth control (10-20)% D most appropriate , D is the
effective diameter of the member .
Through the above analysis , I believe we will know more about Ball
Mill for quenching and other components carried out , Further , in the actual
production in a ball mill , a ball mill because of different main components of
the manufacturing process , quenching process carried out for each member
operation will be different, so the quenching of different devices and have
production characteristics determined by the actual situation .