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Foreign bearing heat treatment
Source: China Bearing Network Time: 2014-02-20
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The quality of heat treatment is directly related to the subsequent processing quality, which affects the function and life of the parts at the end; together with heat treatment, it is the power consumption and pollution of the machinery industry. These years; following the advancement of scientific skills and its heat The use of disposal; the development of heat treatment skills is now the following:
(1) Sanitary heat treatment, waste water, waste gas, waste salt, dust, noise and electromagnetic radiation, which are formed by heat treatment, will cause pollution to the environment. Disposal of environmental pollution problems of heat treatment; implementation of sanitary heat treatment (or green heat treatment) Disposal) is one of the directions for the development of heat treatment skills in developed countries. In order to reduce the emissions of SO2, CO, CO2, dust and cinders, coal has been used as a fuel; the use of heavy oil is also less and less; Natural gas is still the most ideal fuel. The use of waste heat in incinerators has reached a high level; the optimization of the layout of the incinerator and the strict control of the air-fuel ratio ensure the rational incineration; the minimum of NOX and CO is reduced. Limit, use gas carburizing, carbonitriding and vacuum heat treatment skills instead of salt bath disposal to reduce the pollution of waste water and CN-toxic substances to water sources, use water-soluble quenching oil instead of some quenching oil; use biodegradable Vegetable oil replaces some mineral oil to reduce oil pollution.
(2) Fine heat treatment Fine heat treatment has two aspects: on the one hand, based on the application requirements of the parts, data, layout scale; using physical metallurgy common sense and leading computer simulation and testing skills; optimizing process parameters; The ability to carry forward the data with the function or the maximum limit, on the other hand, it is sufficient to ensure the stability of the optimized process; the quality dispersion of the finished product is very good.
(3) Energy-saving heat treatment Scientific production and power management are the most promising elements for the useful use of power; establishing a professional heat treatment plant to ensure full-load production and abundant development of equipment can be a scientific management choice. Priority is given to selecting a power, using waste heat and waste heat, and selecting a process with low energy consumption and short cycle to replace the long cycle and high energy consumption process.
(4) Less oxidation-free heat treatment is heated by a controlled atmosphere heating instead of an oxidizing atmosphere to control the carbon potential and nitrogen potential in a controlled atmosphere; the function of the parts after heat treatment is advanced; the disadvantages of heat treatment such as decarburization, cracking, etc. Reduction; reduction of finishing allowance after heat treatment; advancement of data utilization rate and machining power. Vacuum heating gas quenching, vacuum or low pressure carburizing, nitriding, nitrocarburizing and boronizing can significantly improve quality Reduce distortion and advance life.
The thermal handling quality of bearing parts is the most severe in the entire machinery industry. Bearing heat treatment has made great progress in the past 20 years; the first table is now the following aspects: the discussion of the basic theory of heat treatment, heat treatment Research on process and application skills, development of new heat treatment equipment and related skills.
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Chain Link Fence is
become one of the most popular fencing material all over the world. Also named
as chain link mesh, chain link wire, chain wire, diamond mesh and cyclone mesh,
this type of Fence is made from high quality low carbon steel wire and linked
into flexible and firm fabrics. In Enzar Metal, we supply a complete line of
chain link products for residential, commercial and industrial applications,
including chain link fabrics, chain link framework, chain link accessories and
chain link gate.
Features of Chain
Link Fence:
- Materials: Low
carbon steel wire, Stainless steel wire, Aluminum alloy wire.
- Surface
Treatment: Electro galvanized, Hot-dipped galvanized, Galva.+ PVC coated.
- Edge
Style: Twisted barb edge, Closed edge.
- Packing: Wrap
up both edges with woven bag, or with Pallet, or as customer's request.
- Application: Sports
field, River banks, Construction and residence, also animal fencing.
Common Specifications &
Packing
|
Parameter
|
Measurement
|
Data
|
|
Opening
|
Metric
|
25mm, 40mm, 50mm, 55mm, 60mm, 65mm, 76mm, 100mm
|
|
Inch
|
1", 1-1/2", 2", 2-1/4", 2-2/5", 2-1/2",
3", 4"
|
|
Wire
|
Metric
|
1.2mm-6.0mm
|
|
Gauge
|
AWG #3 to AWG18# or equvilent standard
|
|
Roll Width
|
Metric
|
0.5m to 8.0m
|
|
Inch
|
2ft to 28ft
|
|
Roll Length
|
Metric
|
5m, 10m, 15m, 20m, 25m, 30m, 50m, 100m
|
|
Inch
|
10ft, 15ft, 20ft, 50ft, 100ft, 500ft
|
|
Note: Special size is available by customer made.
|
Advantages of Chain
Link Fence:
1) Low
carbon steel diamond mesh has a heavy galvanized coating to ensure a long life
2) Use
for High security building: Airport ,Farm land, Sport field, Prison and so on
3) It
can offset force, so it is widely use for sports field
4) Chain
link wire mesh is separable, you can adjust the length as you need
5) The
height can be up to 7m
6)
It is more security to add some Razor Barbed Wire or barbed wire on the top
7)
beautiful diamond mesh: different colors for choose
8) easy
to install .
Chain Link Fence
Galvanized Chain Link Fence,Vinyl Coated Chain Link Fence,Galvanized Chain Link Fabric,Diamond Wire Fence
Anping Enzar Metal Products Co.,Ltd. , https://www.enzarmetal.com