Español 
Latest products
Glass bottle mold heat treatment defect prevention in the mold surface has a soft spot
by：Lisson
2020-11-11
Mold surface is soft point
mold heat treatment after surface has a soft spot, will affect the mould wear resistance, reduce the service life of mould.
( 1) Reasons for
1) Mold surface of oxide skin before heat treatment, rusty spot and partial decarburization.
2) Incorrect die quenching after heating, cooling quenching medium, quenching medium impurities too much or aging.
( 2) Preventive measures
1) Mould should be removed before heat treatment scale, rusty spot, appropriate protection mould surface quenching heating, should try to adopt the vacuum furnace, salt bath furnace with protective atmosphere heating furnace.
2) Die quenching cooling after the heating, should choose the appropriate cooling medium, the cooling medium to the long-term use of often filtered, or replaced periodically.
mold heat treatment after surface has a soft spot, will affect the mould wear resistance, reduce the service life of mould.
( 1) Reasons for
1) Mold surface of oxide skin before heat treatment, rusty spot and partial decarburization.
2) Incorrect die quenching after heating, cooling quenching medium, quenching medium impurities too much or aging.
( 2) Preventive measures
1) Mould should be removed before heat treatment scale, rusty spot, appropriate protection mould surface quenching heating, should try to adopt the vacuum furnace, salt bath furnace with protective atmosphere heating furnace.
2) Die quenching cooling after the heating, should choose the appropriate cooling medium, the cooling medium to the long-term use of often filtered, or replaced periodically.
Custom message
