Steel Material Crane Forging Hook:
1.Application of steel material crane forging hook:
Steel material crane forging hook is the most common hook device in
the crane machinery. Hook hangs on the wire rope of the lifting
mechanism with the help of pulleys such parts,hook is the most
widely used among the load handling device. It has such
characteristics as simple manufacture and strong usability.
2.Product category of steel material crane forging hook
Steel material crane forging hook have single hook and double hooks
according to shape of hook, five strength gradesM,P,S,T,V are
classified in accordance with mechanical prperty. Forging hook and
strap type hook are manufactured according to the method of
manufacturing,
3.Steel material crane forging hook :Manufacturing is simple and it
is easy to operate,it is mainly used in the workplace below 80t
lifting capacity. Force symmetry double hooks are adopted to larger
capacity.
4.Steel material crane forging hook: adopts high-quality low carbon
killed steel or low carbon alloy steel,such as 20 high-quality low
carbon steel,16Mn,20MnSi,36MnSi,which is annealed after being
forged,
5.Steel material crane forging hook :riveted through several pieces
of cutting forming steel,when individual plate has flaws,the whole
hook is not damaged,good safety,heavy dead weight,mainly equipped
with big lifting capacity cranes or cranes lifting molten steel
ladles.
One of following cases happens,and discard as useless:
1.Flaws,
2.Abrasion of dangerous fracture surface reaches 10% of full size,
3.Degree of opening adds to 15% than full size.
4.Torsional deformation exceeds 10 degree.
5.Dangerous fracture surface and hook neck have plastic
deformation,
6.Lining of board hook abrades reaches 50% of full size,and should
be discarded as useless,
7.Mandrel of board hook abrades reaches 50% of full size,and should
be discarded as useless.
