CN215544769U

CN215544769U - Columnar hollow graphite crystallizer

Info

Publication number: CN215544769U
Application number: CN202122409012.8U
Authority: CN
Inventors: 付俊成; 代立东; 孙兆君; 吴喜文; 陈俊宇; 董智鹏; 韩方瑞
Original assignee: Harbin Weierji Composite Material Co ltd
Current assignee: Harbin Weierji Composite Material Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-01-18
Anticipated expiration: 2031-09-30

Abstract

A columnar hollow graphite crystallizer belongs to the technical field of metal casting, and the specific scheme is as follows: the utility model provides a column cavity graphite crystallizer, includes first box and second box, first box is the loop configuration, the second box sets up in the loop configuration and can dismantle with first box and be connected, all be provided with the graphite cake on the lateral wall of loop configuration's lateral wall and second box, constitute casting cooling chamber between first box and the second box. The aluminum ingot produced by the technical scheme of the utility model has good surface quality, the service life of the crystallizer is prolonged by the integrated structure, the embedded graphite plate has good lubricity, an oil circuit system is saved, the casting process is safer and more reliable, the casting cost is reduced, and the production efficiency is improved.

Description

Columnar hollow graphite crystallizer

Technical Field

The utility model belongs to the technical field of metal casting, and particularly relates to a columnar hollow graphite crystallizer.

Background

At present, the production of aluminum alloy cast ingots generally adopts grease cooling and lubricating modes, the flow velocity and flow of grease are difficult to achieve uniform cooling and lubricating in the whole circumference, and the grease overflowing in the casting process is attached to the surface of a crystallizer, so that the cleaning process is time-consuming and labor-consuming, and the production efficiency is influenced.

The crystallizer is contacted with high-temperature aluminum liquid in the casting process, and when grease is adopted for cooling and lubricating, the overflow speed of the grease is higher, and the effective lubricating time is shorter. When the amount of the grease overflowing is too much, carbide is formed in a contact area between the liquid aluminum and the crystallizer (the grease is carbonized at high temperature), and the carbide is attached to the crystallizer. The adhered carbide reduces the smoothness of the working surface of the crystallizer, increases the friction resistance and causes casting surface defects such as dragging marks or transverse tearing of the surface of the aluminum alloy cast ingot. The defects of the cast ingot after heat aggregation are longitudinal through body cracks of the cast ingot, surface dragging marks, transverse tearing, uneven shell thickness of the cast ingot, narrow range of casting technological parameters, difficult casting and the like.

Disclosure of Invention

The utility model provides a columnar hollow graphite crystallizer, which can be used for casting aluminum ingots with two specifications, and an oil circuit system is omitted by utilizing the lubricating property of graphite, so that the safety is improved, the casting cost is reduced, and the production efficiency is improved.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a column cavity graphite crystallizer, includes first box and second box, first box is the loop configuration, the second box sets up in the loop configuration and can dismantle with first box and be connected, all be provided with the graphite cake on the lateral wall of loop configuration's lateral wall and second box, constitute casting cooling chamber between first box and the second box.

Further, first box includes at least one inlet opening I and a plurality of apopore I, and all inlet openings I and all apopores I all set up the lower surface at first box, are provided with baffle I between all inlet openings I and all apopores I, the vertical lower surface of fixing at first box of baffle I, be provided with through-hole I on the baffle I.

Further, the second box includes at least one inlet opening II and a plurality of apopore II, and all inlet openings II and all apopores II all set up the lower surface at the second box, are provided with baffle II between all inlet openings II and all apopores II, II vertical lower surfaces of fixing at the second box of baffle, be provided with through-hole II on the baffle II.

Further, the crystallizer also comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate are both annular and are respectively and fixedly arranged on the upper surface and the lower surface of the first box body.

Further, the crystallizer also comprises an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are respectively and fixedly arranged on the upper surface and the lower surface of the second box body.

Furthermore, each water inlet I and each water inlet II are provided with a filter screen.

Further, the casting cooling chamber is in a circular ring or square ring structure.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model can cast two aluminum ingots with different specifications at the same time: the columnar aluminum ingot and the columnar hollow aluminum ingot reduce the manufacturing quantity of crystallizers, reduce the cost and fill the market blank of columnar hollow aluminum alloy casting.

The crystallizer graphite plate is made of high-purity graphite and is processed by precise CNC equipment, the geometric accuracy is high, the casting surface is smooth, the maintenance cost is low, and the crystallizer graphite plate is free of pollution to molten metal, is the best choice for hot ingot casting, and meets the technical requirements of producing high-added-value and high-technical-performance aluminum alloy precision casting products such as aviation, traffic and electronic products.

The high-purity graphite plate has good self-lubricating property, smooth glaze surface, high geometric processing precision, low maintenance cost, no delamination and peeling phenomenon, effectively reduces the pollution to aluminum liquid, is used for pollution-free fine aluminum casting, has good scouring resistance and thermal shock resistance, improves the corrosion resistance to molten metal, has normal service life of 800 plus 1200 casting times, and saves energy and reduces consumption.

The columnar hollow graphite crystallizer mainly comprises a graphite plate, an aluminum cavity and the like. The graphite plate of the crystallizer is used as a working surface when aluminum alloy is cast, and has the characteristics of high temperature corrosion resistance, cold and heat shock resistance, high porosity, good permeability and the like.

Drawings

FIG. 1 is a top view of a cylindrical hollow graphite crystallizer;

FIG. 2 is a front view of a cylindrical hollow graphite mold;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 4 is an enlarged view of B in FIG. 3;

FIG. 5 is a bottom view of a cylindrical hollow graphite crystallizer;

wherein, 1, a first box body; 2. a second case; 3. a graphite plate; 4. an upper pressure plate; 11. a water inlet hole I; 12. a water outlet hole I; 13. a baffle plate I; 14. a through hole I; 15. a filter screen; 22. a removable panel.

Detailed Description

The utility model is further described with reference to the accompanying figures 1-5 and the detailed description.

The first embodiment is as follows:

the utility model provides a columnar hollow graphite crystallizer, which is provided with two box bodies and can be used for casting columnar aluminum ingots and columnar hollow aluminum ingots, and an oil way system is saved by utilizing the graphite lubricating property, so that the safety is improved, the casting cost is reduced, and the production efficiency is improved. The specific scheme is as follows:

the utility model provides a column cavity graphite crystallizer, includes first box 1 and second box 2, first box 1 is the loop configuration, second box 2 sets up in the loop configuration and can dismantle with first box 1 through removable sheet 22 and be connected, all be provided with graphite cake 3 on the lateral wall of loop configuration's lateral wall and second box 2, constitute the casting cooling chamber between first box 1 and the second box 2.

Further, first box 1 includes at least one inlet opening I11 and a plurality of apopore I12, and all inlet openings I11 and all apopores I12 all set up the lower surface at first box 1, are provided with baffle I13 between all inlet openings I11 and all apopores I12, baffle I13 is vertical to be fixed at the lower surface of first box 1, be provided with through-hole I14 on the baffle I13. After the cooling water got into first box 1 through inlet opening I11, through-hole I14 on baffle I13, then flowed through apopore I12, cooled off the crystallization to the aluminium ingot.

Further, the second box 2 includes at least one inlet opening II and a plurality of apopore II, and all inlet openings II and all apopores II all set up at the lower surface of second box 2, are provided with baffle II between all inlet openings II and all apopores II, II vertical lower surfaces of fixing at second box 2 of baffle, be provided with through-hole II on the baffle II. The flow direction of the cooling water of the second tank 2 is the same as the cooling direction of the first tank 1.

Further, the crystallizer still includes top board 4 and holding down plate, top board 4 and holding down plate all form the ring, top board 4 is fixed to be set up at the upper surface of first box 1, the fixed lower surface that sets up at first box 1 of holding down plate, top board 4 and holding down plate are used for the graphite cake 3 of fixed gomphosis on 1 wall of first box.

Further, the crystallizer also comprises an upper cover plate and a lower cover plate, the upper cover plate is fixedly arranged on the upper surface of the second box body 2, the lower cover plate is fixedly arranged on the lower surface of the second box body 2, and the upper cover plate and the lower cover plate are used for fixing the graphite plate 3 embedded on the outer side wall of the second box body 2.

Furthermore, a filter screen 15 is arranged at each water inlet 11 and used for filtering cooling water introduced into the water inlet 11.

Preferably, the casting cooling chamber is in a circular or square ring structure.

When casting the cylindrical cavity aluminium ingot, open the inlet tube of the first box 1 of crystallizer and second box 2, the cooling water gets into filter screen 15 through inlet opening I11 and inlet opening II, be full of first box 1 and second box 2 after filtering, then flow out through apopore I12 and apopore II, will treat that refrigerated aluminum alloy flows through the annular casting cooling die cavity between first box 1 and the second box 2, can realize the cooling crystallization of aluminum alloy, the crystallizer shifts up, progressively builds fashioned cylindrical cavity aluminium ingot. When casting the column aluminium ingot, dismantle second box 2 and take out, open the inlet tube of first box 1, cooling water gets into filter screen 12 through inlet opening 11, is full of first box 1 after the filtration, when the casting cooling die cavity that will treat that refrigerated aluminum alloy flows through first box 1 and encloses, can realize the cooling crystallization of aluminum alloy, obtain fashioned column aluminium ingot. The aluminum ingot produced by the technical scheme of the utility model has good surface quality, the service life of the crystallizer is prolonged by the integrated structure, the embedded graphite plate has good lubricity, an oil circuit system is saved, the casting process is safer and more reliable, the casting cost is reduced, and the production efficiency is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. A columnar hollow graphite crystallizer is characterized in that: including first box (1) and second box (2), first box (1) is the loop configuration, second box (2) set up in the loop configuration and can dismantle with first box (1) and be connected, all be provided with graphite cake (3) on the lateral wall of loop configuration's lateral wall and second box (2), constitute casting cooling chamber between first box (1) and second box (2).

2. The cylindrical hollow graphite crystallizer of claim 1, wherein: first box (1) includes at least one inlet opening I (11) and a plurality of apopore I (12), and all inlet openings I (11) and all apopores I (12) all set up the lower surface at first box (1), are provided with baffle I (13) between all inlet openings I (11) and all apopores I (12), the lower surface at first box (1) is vertically fixed in baffle I (13), be provided with through-hole I (14) on baffle I (13).

3. The cylindrical hollow graphite crystallizer of claim 2, wherein: the second box body (2) comprises at least one water inlet hole II and a plurality of water outlet holes II, all the water inlet holes II and all the water outlet holes II are arranged on the lower surface of the second box body (2), baffle plates II are arranged between all the water inlet holes II and all the water outlet holes II, the baffle plates II are vertically fixed on the lower surface of the second box body (2), and through holes II are formed in the baffle plates II.

4. The cylindrical hollow graphite crystallizer of claim 1, wherein: the crystallizer further comprises an upper pressing plate (4) and a lower pressing plate, wherein the upper pressing plate (4) and the lower pressing plate are both annular and are fixedly arranged on the upper surface and the lower surface of the first box body (1) respectively.

5. The cylindrical hollow graphite crystallizer of claim 1, wherein: the crystallizer also comprises an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are respectively and fixedly arranged on the upper surface and the lower surface of the second box body (2).

6. A cylindrical hollow graphite crystallizer as claimed in claim 3, wherein: and each water inlet I (11) and each water inlet II are provided with filter screens (15).

7. The cylindrical hollow graphite crystallizer of claim 1, wherein: the casting cooling cavity is of a circular ring or square ring structure.