CN102000786A

CN102000786A - Mold for casting high-purity rare-earth metal section

Info

Publication number: CN102000786A
Application number: CN 201010553758
Authority: CN
Inventors: 陶利明; 袁萍; 徐秋华
Original assignee: Jiangxi Rare Earth and Rare Metals Tungsten Group Holding Co Ltd
Current assignee: Jiangxi Golden Century Advanced Materials Co ltd; Jiangxi Tungsten Holding Group Co ltd
Priority date: 2010-11-22
Filing date: 2010-11-22
Publication date: 2011-04-06
Anticipated expiration: 2030-11-22
Also published as: CN102000786B

Abstract

The invention relates to a mold for casting a high-purity rare-earth metal section. Section casting molds which are combined half and half are arranged between an external titanium template and a middle titanium template which lean against each other, and the combined surface of the external titanium template and the middle titanium template is a half-to-half combination mold splitting surface; an upper sleeve ring of the mold is sleeved on the upper end part of the titanium plate casting mold in a clearance way, and a lower sleeve ring of the mold is sleeved on the lower end part of the titanium plate casting mold in a clearance way; the frame of the upper sleeve ring of the mold and the frame of the lower sleeve ring on one side are respectively provided with a first bolt meshed with the frame; a graphite plate is arranged on the lower end face of the titanium plate casting mold; a titanium metal casting funnel consisting of two semi-cylinders which are formed by dividing vertically from the middle and are provided with funneled inner cavities is tightly matched on the upper end face of the titanium plate casting mold. Under the condition of high temperature, the titanium plate templates cannot be reacted with the rare-earth metal, and the purity of high-purity rare-earth metal section cast products is ensured; and the titanium plate casting mold and the casting funnel are convenient to detach and separate so as to facilitate demolding.

Description

A kind of mould of high pure rare earth metals casting section bar

Technical field

The present invention relates to a kind of metal smelt casting die, particularly relate to a kind of mould that high pure rare earth metals is smelted the casting section bar that is used for.

Background technology

In high pure rare earth metals is smelted,, at high temperature very easily react with other media because rare earth metal fusing point height, chemism are strong.When casting the rare earth metal section bar, adopt the ordinary steel molding jig, at high temperature reaction has taken place in rare earth metal and mold materials in the past, causes bringing impurity in the rare earth metal section bar of casting, has both influenced product purity, produces adhesion again, is difficult to the demoulding.

Summary of the invention

The purpose of this invention is to provide a kind of at high temperature with the mould of rare earth metal reaction, the easily demoulding, casting high pure rare earth metals section bar.

For achieving the above object, the present invention takes following technical scheme: a kind of mould of high pure rare earth metals casting section bar, outside titanium template die body and middle titanium template die body are formed titanium plate casting mould, and the outside titanium template die body that height and width are identical and the both sides of middle titanium template die body are provided with engaged vertical step; The section bar that is provided with double combination between outside titanium template die body that reclines mutually and the middle titanium template die body waters mold, and is the die joint of double combination with the faying face of outside titanium template die body and middle titanium template die body; The collar is inserted in the upper end of described titanium plate casting mould with a gap on the mould, the mould lower collar is inserted in the bottom of described titanium plate casting mould with a gap, a side frame of the collar and mould lower collar is provided with first bolt that meshes with frame on the mould, and first bolt holds out against titanium plate casting mould after screwing in; Graphite cake is placed in the lower surface of described titanium plate casting mould, and the titanium sprue cup closely cooperates and is installed in the upper surface of titanium plate casting mould.

Described titanium plate casting mould is by two outside titanium template die bodies and be clipped in two middle titanium template die bodies between the titanium template die body of the outside and form.Two semicylinder combinations of the band infundibulate inner chamber that described titanium sprue cup is vertical centering subdivision, the annular funnel collar is inserted in described titanium sprue cup with a gap, annular funnel collar both sides are provided with two second bolts that mesh with the collar along collar diametric(al), hold out against two semicylinders combinations of titanium sprue cup after two second bolts evenly screw in.

The invention has the beneficial effects as follows:

1. under the hot conditions when casting, titanium template die body can reaction not occur with high pure rare earth metals, avoids bringing into impurity, guarantees the purity of high pure rare earth metals section bar casting product.

2. forming the titanium sprue cup that two semicylinders of the band infundibulate inner chamber of titanium plate casting mould and vertical centering subdivision form by outside titanium template die body and middle titanium template die body all is easy removal and separation, is convenient to the demoulding.

3. be provided with a plurality of half-and-half section bars of combination between outside titanium template die body that reclines mutually in the titanium plate casting mould and the middle titanium template die body and water mold, the volume of its quantity and high pure rare earth metals smelting furnace is complementary, and improves casting efficient.

Description of drawings

Fig. 1 is the structural representation (the N-N cutaway view of Fig. 2) that the special-shaped section bar of the present invention waters mold.

Fig. 2 is the K-K cutaway view of Fig. 1.

Fig. 3 is the M-M cutaway view (omitting the collar and mould lower collar on the mould) of Fig. 1.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

Embodiment is as Figure 1-3: a kind of mould of high pure rare earth metals casting section bar, is made up of two outside titanium template die bodies 3 and the middle titanium template die body 8 that is clipped between them, the outside titanium template die body 3 that height and width are identical and the both sides of middle titanium template die body 8 are provided with engaged vertical step.But be provided with between outside titanium template die body 3 that reclines mutually and the middle titanium template die body 8 the casting cylinder of four～eight double combinations or the demoulding various section bar water mold, be complementary with the volume of high pure rare earth metals smelting furnace, improve casting efficient; Titanium plate casting mould is the die joint that the section bar of double combination waters mold with the faying face of outside titanium template die body 3 and middle titanium template die body 8.

The collar 4 is inserted in the upper end of described titanium plate casting mould with a gap on the mould, mould lower collar 6 is inserted in the bottom of described titanium plate casting mould with a gap, a side frame of the collar 4 and mould lower collar 6 is provided with and holds out against titanium plate casting mould for the casting high pure rare earth metals after first bolt, 5, the first bolts 5 that mesh with frame screw on the mould.During the demoulding, unscrew first bolt 5, take out the collar 4 and mould lower collar 6 on the mould, separately outside titanium template die body 3 and middle titanium template die body 8 get final product the demoulding.

Graphite cake 7 is placed in the lower surface of described titanium plate casting mould, and the high pure rare earth metals that pours into titanium plate casting mould is held in sealing.

Titanium sprue cup 1 closely cooperates and is installed in the upper surface of titanium plate casting mould, two semicylinder combinations of the band infundibulate inner chamber that described titanium sprue cup 1 is vertical centering subdivision.The annular funnel collar 2 is inserted in described titanium sprue cup 1 with a gap, the annular funnel collar 2 both sides are provided with two second bolts 9 that mesh with the collar along collar diametric(al), hold out against two semicylinder combinations of titanium sprue cup 1 after two second bolts 9 evenly screw in, guarantee that high pure rare earth metals does not enter in the titanium plate casting mould by sprue cup 1 with having leakage.During the demoulding, unscrew second bolt 9, take out the annular funnel collar 2, separate two semicylinder combinations of the band infundibulate inner chamber of vertical centering subdivision, be convenient to separate with casting cap mouth.

The outside titanium template die body 3 that contacts with high pure rare earth metals, middle titanium template die body 8 and sprue cup 1 are made by titanium, and the collar 4, mould lower collar 6 and the funnel collar 2 can adopt general steel manufacturing on the mould.

Claims

1. the mould of high pure rare earth metals casting section bar, it is characterized in that: outside titanium template die body (3) and middle titanium template die body (8) are formed titanium plate casting mould, and the outside titanium template die body (3) that height and width are identical and the both sides of middle titanium template die body (8) are provided with engaged vertical step; The section bar that is provided with double combination between outside titanium template die body (3) that reclines mutually and the middle titanium template die body (8) waters mold, and is the die joint of double combination with the faying face of outside titanium template die body (3) and middle titanium template die body (8); The collar on the mould (4) is inserted in the upper end of described titanium plate casting mould with a gap, mould lower collar (6) is inserted in the bottom of described titanium plate casting mould with a gap, one side frame of the collar on the mould (4) and mould lower collar (6) is provided with first bolt (5) with the frame engagement, and first bolt (5) holds out against titanium plate casting mould after screwing in; Graphite cake (7) is placed in the lower surface of described titanium plate casting mould, and titanium sprue cup (1) closely cooperates and is installed in the upper surface of titanium plate casting mould.

2. the mould of a kind of high pure rare earth metals casting section bar according to claim 1 is characterized in that: described titanium plate casting mould by two outside titanium template die bodies (3) with outside being clipped in two the middle titanium template die body (8) between the titanium template die bodies (3) form.

3. the mould of a kind of high pure rare earth metals casting section bar according to claim 1, it is characterized in that: described titanium sprue cup (1) is two semicylinder combinations of the band infundibulate inner chamber of vertical centering subdivision, the annular funnel collar (2) is inserted in described titanium sprue cup (1) with a gap, the annular funnel collar (2) both sides are provided with two second bolts (9) that mesh with the collar along collar diametric(al), hold out against two semicylinders combinations of titanium sprue cup (1) after two second bolts (9) evenly screw in.