Qingyun Hongsheng Machinery Parts Co., Ltd. is one of the most reliable manufacturers and suppliers of high and low chromium wear-resistant cast iron parts in China. We warmly welcome you to wholesale high quality high and low chromium wear-resistant cast iron parts at low price from our factory. If you have any enquiry about quotation, please feel free to email us.
High and low chromium wear-resistant cast iron parts
1 Product name: high and low chromium wear-resistant cast iron parts (Cr 20, KmTBCr26)
2 Material: Cr 20, KmTBCr26
3 Casting process: water glass-silica gel composite process / water glass (melt mold casting) process
4 larger size: diameter 730mm high 500mm within
5 weight range: within 100K
6 Casting tolerances:
(1) Dimension tolerance GB6414-1999 standard: CT6-CT7 class
ISO 8062-3-2007 Standard: DCTG 6-DCTG Grade 7
ISO 2768-1 standard: between m level and c level
VDG P690 Standard: below grade D1
(2) Weight tolerance GB / T 11351-89 standard: MT6-MT7 level casting surface roughness: surface finish level 5, namely Ra 6.3 monthly output: monthly output of 70 tons
7 Chemical composition:
CR20 material:
|
|
C |
Mn |
Si |
Ni |
Cr |
Mo |
Cu |
P |
S |
|
KmTBCr12 |
|
≤2.0 |
≤1.5 |
≤2.5 |
|
≤3.0 |
≤1.2 |
≤0.10 |
≤0.06 |
|
KmTBCr15Mo |
|
≤2.0 |
≤1.2 |
≤2.5 |
|
≤3.0 |
≤1.2 |
≤0.10 |
≤0.06 |
|
KmTBCr20Mo |
|
≤2.0 |
≤1.2 |
≤2.5 |
|
≤3.0 |
≤1.2 |
≤0.10 |
≤0.06 |
|
KmTBCr26 |
|
≤2.0 |
≤1.2 |
≤2.5 |
|
≤3.0 |
|||
The biggest advantage of melt casting is that because the melt casting has a high size precision and surface finish, so it can reduce the machining work, but in the higher requirements of the parts of a little processing allowance, and even some castings only leave grinding, polishing allowance, can not be used without mechanical processing. It can be seen that the use of melt mold casting method can save a lot of machine tool equipment and processing hours, greatly save metal raw materials.
Another advantage of the mold casting method is that it can cast complex castings of various alloys, especially superalloy castings. For example, the blade of a jet engine, with its streamlined outline and cooling inner cavity, can hardly be formed with mechanical processing technology. The production of melt mold casting process can not only achieve mass production, ensure the consistency of the casting, but also avoid the stress concentration of residual knife lines after machining.
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