Hot rolling is above the recrystallization temperature.Simpler, a
piece of steel billet in heating after several after rolling, and
trimming, correct as steel plate, this is called hot rolled.Can
significantly reduce the energy consumption and reduce costs.When
hot rolled metal plasticity, low deformation resistance, greatly
reduce the energy consumption of metal deformation.Hot rolling can
improve the processing performance of metal and alloy, the casting
of the state of the bulky grain crushing, significant crack
healing, reduce or eliminate the casting defects, the as-cast into
deformation, improve the processing performance of alloy.
Steel plate width can also be used for a 50 mm or 10 mm multiples
of any size, steel plate length is 100 mm or 50 mm multiples of any
size, but the thickness is less than 4 mm and steel length shall
not be less or equal to 1.2 m, the thickness is greater than 4 mm
and the steel length shall not be less than 2 m. Other sizes of
steel plates and steel belts can be supplied as required by both
parties.
Hot Rolling also includes 65Mn and other alloy spring steel:
Spring steel refers to the steel that is used to make springs and
elastic elements due to the elasticity of quenching and tempering.
The elasticity of steel depends on its ability of elastic
deformation, which means that the elastic deformation is able to
withstand a certain load within the specified range, and no
permanent deformation occurs after the load is removed. Should
spring steel has excellent comprehensive performance, such as
mechanical properties (especially the elastic limit, ultimate
strength, showed), play reduce resistance (namely elasticity
decreased resistance, also known as relaxation resistance), fatigue
performance, hardenability, physical and chemical properties, heat
resistant, good low temperature resistance, oxidation resistance,
corrosion resistance, etc.). In order to meet the performance
requirements, spring steel has good metallurgical quality (high
purity and uniformity), good surface quality, (strictly control the
surface defect and decarburization), accurate shape and size.