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01-08

2024

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The raw materials and usage effects of iron ditch castables

The raw materials and usage effects of iron ditch castables

10-29

2020

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How to find a good manufacturer of building materials grouting material

How to find a good manufacturer of building materials grouting material?

How to find a good manufacturer of building materials grouting material

10-29

2020

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Yutai high-temperature new material re-trains and learns to create Ruicheng waterless gun mud customers assured products

　　1. Standard for gray iron castings: GB9439-88 　　2. Features of gray cast iron parts: 　　(1) Good abrasion resistance and shock absorption. As the graphite in cast iron is good for lubrication and oil storage, it has good wear resistance. Similarly, due to the presence of graphite, gray cast iron has better shock absorption than steel. 　　(2) Good process performance. Because gray cast iron has high carbon content, close to eutectic composition, low melting point, good fluidity, and small shrinkage, it is suitable for casting complex or thin-walled castings. In addition, because graphite makes it easy to form chip breakage during cutting, the machinability of gray cast iron is better than steel.a 　　The level 0 level 1 flat platform shall have no less than 25 points within a range of 25 mm square on each side. 　　Level 2 flat platform shall have no less than 20 points within a range of 25mm square on each side. 　　Level 3 flat platform shall have no less than 12 points within a range of 25mm square on each side. 　　The working surface of the cast iron platform should not have rust, scratches, bruises and other appearance defects that affect the use. 　　There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage on the working surface. The surface of various castings should be cleaned of molding sand, and the surface should be smooth and painted firmly. The edges should be blunt. The cast iron platform is allowed to be blocked with the same material for the sand hole with a diameter of less than 15mm on the platform working surface with an accuracy level lower than "00" level, and its hardness should be lower than the hardness of the surrounding materials. There should be no more than four blocks on the working surface, and the distance between them should be no less than 80mm. 　　3. The relationship between hardness and tensile strength: 　　The relationship between the hardness and tensile strength of gray cast iron, the empirical formula is: 　　A, HB=RH(100+0.438σb) when σb≥196N/mm²...…… …(B1) 　　B. When σb<196N/mm², HB=RH(44+0.724σb)...……… (B2) 　　The relative hardness (RH) value in the formula is mainly determined by the raw material, melting process, processing technology and cooling rate of the casting.

Yutai high-temperature new material re-trains and learns to create Ruicheng waterless gun mud customers assured products

10-29

2020

→

Environmentalists look at Sanyin grout suppliers advocating green development to create brand

Thank you friends from Shanxi for entering the grout enterprise website! Craftsmanship, focus on action! Yutai High Temperature New Material is the main supplier of Shanyin grouting products. There are many customer cases of grouting products in Shanxi, helping you make the right choice when purchasing Shanyin grouting products!

Environmentalists look at Sanyin grout suppliers advocating green development to create brand

10-29

2020

→

Prosperity through culture enhances competitiveness! Jishan Grouting Enterprise Yutai High Temperature New Material Improves Quality

1. The working surface of the cast iron platform should not have rust, scratches, bruises and other appearance defects that affect the use. 　　2. There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage on the working surface. The surface of various castings should be cleaned of molding sand, and the surface should be smooth and painted firmly. The edges should be blunt. On the flat working surface with an accuracy level of less than "00", the sand hole with a diameter of less than 15mm is allowed to be blocked with the same material, and its hardness should be lower than that of the surrounding materials. There should be no more than four blocks on the working surface, and the distance between them should be no less than 80mm. 　　3. The two opposite sides shall be provided with threaded holes or cylindrical holes for installing handles, rings and other lifting facilities. When designing the hoisting position, consider minimizing the changes caused by hoisting. 　　4. According to user requirements, after threaded holes or grooves are set on the working surface of the plate, these parts should not be raised above the working surface. 　　5. It should be made of high-quality fine-grained gray cast iron or alloy cast iron. 　　6. ​​The hardness of the working surface should be HB 170-220. 　　7. The working surface should adopt the scraping process, and the planing process can also be adopted for the "3" flat working surface. The surface roughness of the planed working surface should not exceed 5um according to the contour arithmetic average deviation Ra. 　　8. It should be stabilized and demagnetized. 　　Flatness: can be divided into laboratory level (Reference), calibration level (Master), tool room level (Working) three levels 　　Plane grinding: In the early days of the cast iron platform, people used three platforms to match each other to produce a true flat surface. A skilled and patient grindstone master can use only the matching of the three platforms to make multiple 90-degree rotations without the help of any measuring instruments, and the unbelievable level of trueness can be produced.

Prosperity through culture enhances competitiveness! Jishan Grouting Enterprise Yutai High Temperature New Material Improves Quality
< 1...35363738 > proceed page

The raw materials and usage effects of iron ditch castables

2024-01-08

How to find a good manufacturer of building materials grouting material

2020-10-29

How to find a good manufacturer of building materials grouting material?

Yutai high-temperature new material re-trains and learns to create Ruicheng waterless gun mud customers assured products

2020-10-29

　　1. Standard for gray iron castings: GB9439-88 　　2. Features of gray cast iron parts: 　　(1) Good abrasion resistance and shock absorption. As the graphite in cast iron is good for lubrication and oil storage, it has good wear resistance. Similarly, due to the presence of graphite, gray cast iron has better shock absorption than steel. 　　(2) Good process performance. Because gray cast iron has high carbon content, close to eutectic composition, low melting point, good fluidity, and small shrinkage, it is suitable for casting complex or thin-walled castings. In addition, because graphite makes it easy to form chip breakage during cutting, the machinability of gray cast iron is better than steel.a 　　The level 0 level 1 flat platform shall have no less than 25 points within a range of 25 mm square on each side. 　　Level 2 flat platform shall have no less than 20 points within a range of 25mm square on each side. 　　Level 3 flat platform shall have no less than 12 points within a range of 25mm square on each side. 　　The working surface of the cast iron platform should not have rust, scratches, bruises and other appearance defects that affect the use. 　　There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage on the working surface. The surface of various castings should be cleaned of molding sand, and the surface should be smooth and painted firmly. The edges should be blunt. The cast iron platform is allowed to be blocked with the same material for the sand hole with a diameter of less than 15mm on the platform working surface with an accuracy level lower than "00" level, and its hardness should be lower than the hardness of the surrounding materials. There should be no more than four blocks on the working surface, and the distance between them should be no less than 80mm. 　　3. The relationship between hardness and tensile strength: 　　The relationship between the hardness and tensile strength of gray cast iron, the empirical formula is: 　　A, HB=RH(100+0.438σb) when σb≥196N/mm²...…… …(B1) 　　B. When σb<196N/mm², HB=RH(44+0.724σb)...……… (B2) 　　The relative hardness (RH) value in the formula is mainly determined by the raw material, melting process, processing technology and cooling rate of the casting.

Environmentalists look at Sanyin grout suppliers advocating green development to create brand

2020-10-29

Thank you friends from Shanxi for entering the grout enterprise website! Craftsmanship, focus on action! Yutai High Temperature New Material is the main supplier of Shanyin grouting products. There are many customer cases of grouting products in Shanxi, helping you make the right choice when purchasing Shanyin grouting products!

Prosperity through culture enhances competitiveness! Jishan Grouting Enterprise Yutai High Temperature New Material Improves Quality

2020-10-29

1. The working surface of the cast iron platform should not have rust, scratches, bruises and other appearance defects that affect the use. 　　2. There should be no casting defects such as sand holes, pores, cracks, slag inclusions and shrinkage on the working surface. The surface of various castings should be cleaned of molding sand, and the surface should be smooth and painted firmly. The edges should be blunt. On the flat working surface with an accuracy level of less than "00", the sand hole with a diameter of less than 15mm is allowed to be blocked with the same material, and its hardness should be lower than that of the surrounding materials. There should be no more than four blocks on the working surface, and the distance between them should be no less than 80mm. 　　3. The two opposite sides shall be provided with threaded holes or cylindrical holes for installing handles, rings and other lifting facilities. When designing the hoisting position, consider minimizing the changes caused by hoisting. 　　4. According to user requirements, after threaded holes or grooves are set on the working surface of the plate, these parts should not be raised above the working surface. 　　5. It should be made of high-quality fine-grained gray cast iron or alloy cast iron. 　　6. ​​The hardness of the working surface should be HB 170-220. 　　7. The working surface should adopt the scraping process, and the planing process can also be adopted for the "3" flat working surface. The surface roughness of the planed working surface should not exceed 5um according to the contour arithmetic average deviation Ra. 　　8. It should be stabilized and demagnetized. 　　Flatness: can be divided into laboratory level (Reference), calibration level (Master), tool room level (Working) three levels 　　Plane grinding: In the early days of the cast iron platform, people used three platforms to match each other to produce a true flat surface. A skilled and patient grindstone master can use only the matching of the three platforms to make multiple 90-degree rotations without the help of any measuring instruments, and the unbelievable level of trueness can be produced.

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