Unlock instant, AI-driven research and patent intelligence for your innovation.

Contact material for zirconium alloy, filtering medium using material and runner manufacturing method

A contact material and filter medium technology, applied in metal processing equipment, manufacturing tools, casting molding equipment, etc., can solve problems such as incomparable purification effect, sealing and strength issues, filter medium installation, etc., to avoid volume changes and thermal effects, guaranteed performance

Active Publication Date: 2015-11-11
SHEN ZHEN TOP LINK TECH CO LTD
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, since the filter medium cannot be installed in the integrated sprue, an assembled sprue is generally used. However, this type of sprue has problems with sealing and strength, and has the defect that it cannot purify all the melts, and the purification effect is difficult to compare with that of the integrated sprue. Formed sprue, so there is an urgent need for a sprue where the filter medium is integrally formed inside

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Contact material for zirconium alloy, filtering medium using material and runner manufacturing method
  • Contact material for zirconium alloy, filtering medium using material and runner manufacturing method
  • Contact material for zirconium alloy, filtering medium using material and runner manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The contact material of the present embodiment is made of ceramic powder and reinforcing stabilizer, and said ceramic powder is made of MgO and ZrO 2According to the molar ratio of 6:100, the strengthening and stabilizing agent is 0.5% of the ceramic powder by weight, and the strengthening and stabilizing agent is preferably cerium-rich rare earth. The cationic radius of MgO and Zr 4+ close, they are in ZrO 2 The solubility in the medium is very large, and it can be mixed with ZrO 2 Form substitutional solid solutions of monoclinic, tetragonal and cubic crystal forms.

[0037] The preparation method of the contact material is as follows:

[0038] Step 1, mixing the ceramic powder and reinforcing stabilizer evenly;

[0039] Step 2, wet ball milling for 20 hours, drying in an oven at 80°C and pulverizing;

[0040] Step 3, calcining at 1400°C for 1.5 hours, cooling, and pulverizing, so that the contact material after treatment is uniform and the phase body is stable. ...

Embodiment 2

[0067] The contact material of the present embodiment is made of ceramic powder and reinforcing stabilizer, and said ceramic powder is made of MgO and ZrO 2 According to the molar ratio of 8.5:100, the strengthening and stabilizing agent is 0.8% of the ceramic powder by weight, and the strengthening and stabilizing agent is preferably cerium-rich rare earth.

[0068] The preparation method of the contact material is as follows:

[0069]Step 1, mixing the ceramic powder and reinforcing stabilizer evenly;

[0070] Step 2, wet ball milling for 22 hours, drying in an oven at 90°C and pulverizing;

[0071] Step 3: calcining at 1425°C for 2 hours, cooling, and pulverizing, so that the contact material after treatment is uniform and the phase body is stable. Due to the solid solution treatment in advance, it lays a foundation for subsequent sintering uniformity, and the strength of the material is higher;

[0072] Step 4, wet ball milling for 36 hours, drying at 90°C, passing throu...

Embodiment 3

[0096] The contact material of the present embodiment is made of ceramic powder and reinforcing stabilizer, and said ceramic powder is made of MgO and ZrO 2 According to the molar ratio of 12:100, the strengthening and stabilizing agent is 1% of the ceramic powder by weight, and the strengthening and stabilizing agent is preferably cerium-rich rare earth.

[0097] The preparation method of the contact material is as follows:

[0098] Step 1, mixing the ceramic powder and reinforcing stabilizer evenly;

[0099] Step 2, wet ball milling for 24 hours, drying in an oven at 100°C and pulverizing;

[0100] Step 3, calcining at 1450°C for 2.5 hours, cooling, and pulverizing, so that the contact material after treatment is uniform and the phase body is stable. Due to the solid solution treatment in advance, it lays a foundation for subsequent sintering uniformity, and the strength of the material is higher;

[0101] Step 4: wet ball milling for 48 hours, drying at 100°C, passing thr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a contact material for zirconium alloy, a filtering medium using the material and a runner manufacturing method. The contact material for the zirconium alloy is prepared from ceramic powder and a reinforcing stabilizer. The ceramic powder is composed of MgO and ZrO2 according to the molar ratio of 6-12:100. The reinforcing stabilizer accounts for 0.5%-1% of the ceramic powder by weight. The reinforcing stabilizer is cerium-rich rare earth. By means of the contact material for the zirconium alloy, the filtering medium using the material and a runner, the situation that the zirconium alloy is polluted because the contact material, the filter medium and the runner are reacted with the zirconium alloy in the zirconium alloy casting and purifying processes is avoided. The filtering medium has good normal-temperature strength and high-temperature strength, can be adapted to the temperature change in the purifying process, and guarantees the purifying effect. The filtering medium is embedded in the runner, which can guarantee that all zirconium alloy melts can be intercepted by the filtering medium without dead corners, and therefore the purifying effect is improved.

Description

technical field [0001] The invention relates to the field of zirconium alloy purification, in particular to a contact material, a filter medium and a purification device for zirconium alloy purification. Background technique [0002] At present, the content of zirconium in the earth's crust is very rich, ranking 20th in terms of abundance. The high corrosion resistance and extremely high melting point (1860°C) of metal zirconium are extremely useful in the fields of aerospace, ships and nuclear power. Potential new structural materials. Zirconium has a close-packed hexagonal structure at room temperature, which is called α phase. Its remarkable feature is that the tensile strength at room temperature is very low, less than 400MPa, which cannot meet the requirements of structural materials for mechanical properties. Therefore, in addition to being used in the nuclear industry , are rarely used as structural materials in other engineering fields, and there are few reports so ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C22C1/02C22C16/00B22D21/06B22D27/00B22C9/04
Inventor 何明亮
Owner SHEN ZHEN TOP LINK TECH CO LTD