Прецизионная накидка от производителя, чугунная накидка из песка для сельского хозяйства, накидка из песка (1600169173257)

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Price:1,50 $ - 2,80 $
Price in USD:Details

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Product Overview

Description



Product Show












Type
A(Length Of Anvil )
B(Total Length)
C(Width Of Anvil)
D(High)
E(Base Width)
F(Hole Length And Width)
1LB
6cm
9cm
3.5cm
5.3cm


3KG
11.2cm
17cm
6.5cm
9.5cm


3LB
10.2cm
15cm
5cm
7cm


11LB
12.5cm
22cm
6.5cm
12cm
10cm

10KG
20.7cm
32.5cm
7cm
14cm
9.5cm
1*1
24LB
17.3cm
28.5cm
9cm
14cm
12cm

33LB
19cm
32cm
10cm
16cm


20KG
24cm
35cm
14cm
13.5cm

2.1*2.1
55LB
22cm
36cm
10.5cm
16.5cm

2.1*2.1
30KG
24.5cm
39cm
15cm
16cm
16.5cm
2.1*2.1
75LB
25cm
37.5cm
14.3cm
16cm


50KG
28cm
47.3cm
15cm
22cm
20.5cm
2.1*2.1
100LB
25.3cm
44cm
14cm
20cm
21cm

75KG
29cm
51.5cm
16cm
22.5cm
23cm
3*3
200KG
41.5cm
73cm
23cm
30cm
37cm
4.5*4.5
200LB
40cm
66.5cm
12
26.5cm
27.5cm
2.5*2.5


Product Details












Application Field




Company Profile


Qingdao Zehan Machinery Manufacturing Co., Ltd is an export-oriented high-tech enterprise specializing in fabrication of high-end metal parts, keeping a long-term and stably strategic cooperation with a number of world-famous enterprises since 2006. Our products are widely used in precision equipment, engineering machinery, construction, power facility, medical, animal husbandry, aviation, rail traffic and other industries. They have been widely sold in high-end market like North American and European countries.
Zehan has employee forces with excellent professional competence, strong executive ability, and high working efficiency. More than 80% of them achieved junior college degree or above. In addition to the standard regulation and professional guidance of daily production work, Zehan also provides,employees with regular training on technical basic theory and practical operation technology for years, which improves the front-line employees' overall professional quality while they working, and further improves the products‘ quality and stability. It is our consistent tenet to pursue quality and make every product with high-quality materials, scientific design and exquisite process. 
Qingdao Zehan Machinery Manufacturing Co., Ltd. sincerely welcomes more friends to cooperate with us, and create a better future together.












Processing Capability






Testing Equipment




FAQ


1. How to prevent the formation of air holes in castings?

The effective methods to prevent bubbles are: reducing the gas content in the metal liquid, increasing the air permeability of sand mold, and adding an air riser at the top of the mold cavity.

2. How to avoid the situation of sticky sand?

The surface of the casting is adhered to a layer of sand which is difficult to remove.It not only affects the appearance of casting, but also increases the workload of casting cleaning and cutting, and even affects the life of the machine.The method to prevent the formation of sand is to add coal powder in molding sand, and to brush the surface of the cast mold with anti-sand paint.


3. How to identify shrinkage?

1) Observe the surface shape of casting defects. If the surface is uneven, very rough, and dark gray, the hole with irregular shape is shrinkage cavity.
2) If the location of the hole is at the final solidification thickening of the casting, or at the hot spot where the two walls intersect, and is located in the middle or upper part of the section, it is a shrinkage cavity.
3) The most concentrated hole defects on the thick and large section of steel castings are shrinkage or air shrinkage.


4. How to prevent sand expansion?

In order to prevent sand expansion, the strength of sand mold and the rigidity of sand box should be increased, and the pressing force or fastening force when closing the box should be increased. In addition, the pouring temperature should be reduced to make the surface of molten metal crust earlier, so as to reduce the pressure of molten metal on the mold.

5. How to prevent sand inclusion?

Sand inclusion is a kind of groove and scar defect formed on the surface of castings, which is very easy to produce in wet mold casting of heavy plate castings. Avoiding large plane structure can effectively prevent sand inclusion.

6. How to identify the wrong type, wrong core and off-core?

1) Dislocation is the defect that one part of the casting is staggered with another part at the parting surface, which is usually caused by inaccurate positioning of the mold.
2) The core staggering is that the sand cores are staggered at the parting surface, which makes the inner cavity of the casting deform and the outer surface shape of the casting is correct.
3) Core deviation is caused by improper change of sand core position, which results in casting shape and size inconsistent with the drawing.





1600169173257
0.0238 s.