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A kind of tooling and casting method of casting nicralysi alloy target material

An alloy target and tooling technology, applied in metal material coating process, manufacturing tools, casting and molding equipment, etc., can solve the problems of material and energy waste, low production efficiency, etc., and achieve increased fluidity, high reliability, structural simple effect

Active Publication Date: 2016-06-08
西安诺博尔稀贵金属材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the prepared NiCrAlYSi alloy target ingot can only use the bottom third of the material, and the rest of the material can only be remelted or directly scrapped, which not only reduces production efficiency but also causes waste of materials and energy.

Method used

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  • A kind of tooling and casting method of casting nicralysi alloy target material
  • A kind of tooling and casting method of casting nicralysi alloy target material
  • A kind of tooling and casting method of casting nicralysi alloy target material

Examples

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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, the tooling for casting a NiCrAlYSi alloy target in this embodiment includes a steel barrel 6 with an open upper end, a graphite backing plate 4 is arranged above the bottom of the steel barrel 6, and a graphite mold 1 is arranged above the graphite backing plate 4 , the upper end of the graphite mold 1 is provided with a thermal insulation riser 5 matched with the graphite mold 1, the outer wall of the graphite mold 1 is spirally wound with a cooling water pipe 2, and one end of the cooling water pipe 2 passes through the steel drum 6 as an inlet The water outlet 8, the other end of the cooling water pipe 2 passes through the steel drum 6 as the water outlet 9, the water inlet 8 is located below the water outlet 9, and the inside of the steel drum 6 and the outside of the graphite mold 1 are filled with alumina sand 7 , the height of the top of the alumina sand 7 does not exceed the upper end of the graphite mold 1.

[0036] Such as figure ...

Embodiment 2

[0043] This embodiment is the same as Example 1, except that the thickness of the graphite backing plate 4 is 15 mm, the diameter of the graphite backing plate 4 is 50 mm larger than the outer diameter of the graphite mold 1, and the height of the thermal insulation riser 5 is 70 mm. , the vertical distance between the bottom of the cooling water pipe 2 and the bottom of the graphite mold 1 is 50 mm, the top of the cooling water pipe 2 is located 40 mm above the center of the graphite mold 1, and the pitch of the cooling water pipe 2 is 5 mm. The outer side length of the section is 10 mm, the wall thickness is 1 mm, the inner diameter of the graphite mold 1 is 80 mm, the height is 300 mm, and the wall thickness is 15 mm.

Embodiment 3

[0045] This embodiment is the same as Example 1, except that the thickness of the graphite backing plate 4 is 12 mm, the diameter of the graphite backing plate 4 is 80 mm larger than the outer diameter of the graphite mold 1, and the height of the thermal insulation riser 5 is 60 mm. , the vertical distance between the bottom of the cooling water pipe 2 and the bottom of the graphite mold 1 is 40 mm, the top of the cooling water pipe 2 is located 50 mm above the center of the graphite mold 1, and the pitch of the cooling water pipe 2 is 3 mm. The outer side length of the section is 8 mm, the wall thickness is 0.8 mm, the inner diameter of the graphite mold 1 is 60 mm, the height is 250 mm, and the wall thickness is 12 mm.

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Abstract

The invention discloses a tool for casting a NiCrAlYSi alloy target. The tool comprises a steel bucket of which the upper end is opened, wherein a graphite pad plate is arranged above the bottom of the steel bucket; a graphite mold is arranged above the graphite pad plate; an insulated feeder in a matching manner with the graphite mold is arranged at the upper end of the graphite mold; a cooling water tube is wound on the outer wall of the graphite mold in a spiral manner; one end of the cooling water tube penetrates outside the steel bucket and is used as a water inlet; the other end of the cooling water tube penetrates outside the steel bucket and is used as a water outlet; the water inlet is positioned below the water outlet; the space inside the steel bucket and on the outer side of the graphite mold is filled with aluminum oxide sand; the height of the top end of the aluminum oxide sand is no greater than that of the upper end of the graphite mold. In addition, the invention further discloses a method for casting the NiCrAlYSi alloy target by using the tool. The tool disclosed by the invention has the characteristics of simple structure, high use reliability, low cost, high repeated operability and the like.

Description

technical field [0001] The invention belongs to the technical field of alloy target preparation, and in particular relates to a tooling and a casting method for casting a NiCrAlYSi alloy target. Background technique [0002] As a kind of power machinery, gas turbine is widely used in aviation, power generation, crude oil and natural gas transmission, transportation, metallurgy, chemical industry and other departments. Gas turbine blades are damaged by high temperature oxidation and thermal corrosion during service. In order to improve the service life of blades and ensure the safe and stable operation of gas turbines, the use of protective coatings is currently the most effective way. NiCrAlYSi is a common high-temperature protective coating, which has good adhesion to the substrate and low interdiffusion, and has good resistance to high-temperature oxidation, hot corrosion resistance, high toughness and thermal fatigue resistance. Widely used in aviation and other types of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/06B22C9/08B22D7/06
CPCB22C9/061B22C9/065B22C9/082C23C14/3414
Inventor 周龙海何健孟志军韩吉庆郑学军王航廖俊俊习良晨孙凯军王乐琪李旭
Owner 西安诺博尔稀贵金属材料股份有限公司
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