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Tyre casting method and casting die

A technology for casting molds and tires, applied in casting molding equipment, molds, mold components, etc., can solve the problems of low pass rate of ultrasonic flaw detection, high internal quality requirements of tires, high production costs, etc. Sequential solidification, no crack defects, low cost effect

Inactive Publication Date: 2012-05-09
衡阳中钢衡重铸锻有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The internal quality requirements of the tires are high, and ultrasonic flaw detection inspections are required to meet the requirements of the second level of the national standard GB7233-87. At present, there are castings that use the continuous riser feeding method (such as Figure 6-7 As shown), the yield rate of its process is low, and the production cost remains high; there are also castings that adopt the method of dispersive riser feeding (such as Figure 4-5 shown), the pass rate of the casting ultrasonic flaw detection is very low, with an average of less than 52%.

Method used

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  • Tyre casting method and casting die

Examples

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Effect test

Embodiment 1

[0045] Such as Figure 1-3Shown, a kind of is used for tire casting mold, and it comprises annular slot mold 1, bottom pouring runner system, riser 3 and riser dotting pipeline system; Annular slot mold 1 is installed in the pit, It includes a ring-shaped inner wall 11, a ring-shaped outer wall 12 and a ring-shaped bottom pad 13, the ring-shaped inner wall 11 and the ring-shaped outer wall 12 are respectively located on the inner and outer sides of the ring-shaped bottom pad 13, and the ring-shaped inner wall 11. The annular outer wall 12 and the annular bottom pad 13 form an annular groove 14, the shape of the annular groove 14 is adapted to the shape of the tire 5 to be cast; the annular inner wall 11 is composed of fifteen It is surrounded by two fan-shaped inner wall blocks 111 with equal arc angles, that is, each fan-shaped inner wall block 111 is about one-fifteenth of a ring segment, and every two adjacent fan-shaped inner wall blocks 111 are separated by 45~ 60mm (mm ...

Embodiment 2

[0069] The difference from Example 1 is that the material used in this example casting is ZG35CrMo, the liquidus temperature of this material is 1495°C, the pouring temperature is 1550°C, the size of the tire is φ6420×φ5470×1080, and the weight of the tire is 90900kg. The total weight is 151500kg; the height of the riser 3 is 800mm, the width is 554mm, and the taper of the riser is 1:10; other structural and method features are the same as in Embodiment 1.

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Abstract

The invention discloses a tyre casting method, comprising a toroidal flute cast (1), a bottom casting runner system, a feeder head (3) and a feeder head point casting runner system, wherein, the toroidal flute cast (1) comprises a toroidal inner wall (11), a toroidal outer wall (12) and a toroidal bottom mat (13) which are all composed of a plurality of blocks with different quantities; the bottom casting runner system comprises a bottom casting cross runner (21), a bottom casting ingate (22) and a bottom casting sprue (23). The invention discloses a method for casting a tyre by utilizing a tyre casting cold die. The method has high process yield, and the tyre casting produced by the method has no shrinkage porosity, shrinkage cavity and crack defects.

Description

technical field [0001] The invention relates to a casting process method, in particular to a sand-covered cold mold casting method for a wheel belt. Background technique [0002] The tire of the cement rotary kiln is an important bearing part of the cement rotary kiln equipment, which is related to the safety of the entire cement production line and the service life of the cement kiln. With the rapid development of the national economy in my country, the demand for cement is increasing day by day. my country's cement production has leapt to the first in the world, and more than 300 new cement production lines are under construction. As an essential part of the cement rotary kiln production line, the total demand for tires is huge, with an annual demand of more than 45,000 tons. [0003] The internal quality requirements of the tires are high, and ultrasonic flaw detection inspections are required to meet the requirements of the second level of the national standard GB7233-8...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/28
Inventor 谢驰中刘友成文建华杨斌谈剑
Owner 衡阳中钢衡重铸锻有限公司
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