CN219151539U

CN219151539U - Anti-eccentric die for continuous layered casting

Info

Publication number: CN219151539U
Application number: CN202320104948.6U
Authority: CN
Inventors: 刘昌恩; 黄佳荣; 黄会忠
Original assignee: Zhejiang Huadian Lightning Protection Technology Co ltd
Current assignee: Zhejiang Huadian Lightning Protection Technology Co ltd
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-06-09
Anticipated expiration: 2033-02-03

Abstract

The utility model provides an anti-eccentric die for continuous layered casting, which comprises a die body and a stable straightening terminal arranged at the front end of the die body; one end of the die body is provided with a crystallization cavity, the other end of the die body is provided with a bimetal composite outlet, a crystallization runner is communicated between the crystallization cavity and the bimetal composite outlet, and the crystallization runner and the crystallization cavity are coaxially arranged; the stable straightening terminal comprises a positioning section, one end of the positioning section is provided with a matching section, the other end of the positioning section is provided with a feeding section, and a feeding channel is arranged inside the stable straightening terminal; a plurality of metal liquid launders communicated with the crystallization cavity are arranged on the side wall of the die body. The utility model has reasonable structural design, effectively increases the stability of the base material when the base material passes through the die by using the stable straightening terminal and the die body in a matched manner, and reduces the distance from the liquid state to the semi-solid state of the metal to the solid state, thereby effectively correcting the problem of eccentricity during the double metal composite casting.

Description

Anti-eccentric die for continuous layered casting

Technical Field

The utility model belongs to the technical field of casting, and particularly relates to an anti-eccentric die for continuous layered casting.

Background

The layered metal continuous casting method is to use a solid base material and a liquid metal as an outer layer, coat the outer layer of high-temperature liquid metal on the surface of a base material through a crystallization die, realize continuous casting and form the bimetal composite material with stable bonding interface. However, in the actual production process, the crystallization process of the surface material always is in the motion process, so that the crystallization deviation of the surface metal is generated in the continuous casting process, the surface metal is uneven, the outer metal layer is eccentric, and the quality and performance of the product are affected, so that the existing casting mould is necessary to be improved.

Disclosure of Invention

In view of the above, the present utility model is to overcome the defects in the prior art, and provides an anti-eccentric mold for continuous layered casting.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

an anti-eccentric die for continuous layered casting comprises a die body and a stable straightening terminal arranged at the front end of the die body; one end of the die body is provided with a crystallization cavity, the other end of the die body is provided with a bimetal composite outlet, a crystallization runner is communicated between the crystallization cavity and the bimetal composite outlet, and the crystallization runner and the crystallization cavity are coaxially arranged; the stable straightening terminal comprises a positioning section, one end of the positioning section is provided with a matching section, the other end of the positioning section is provided with a feeding section, a feeding channel is arranged in the stable straightening terminal, and the feeding channel and the crystallization runner are coaxially arranged; the outer wall of the matching section is in sliding fit with the inner wall of the crystallization cavity, the tail end of the mold body is propped against the matching surface of the positioning section, and the length of the crystallization cavity is longer than that of the matching section, so that a crystallization flow space is formed between the matching section and the side wall of the crystallization cavity after the stable straightening terminal is arranged on the mold body; a plurality of metal liquid launders communicated with the crystallization cavity are arranged on the side wall of the die body.

Further, the number of the metal liquid launders is 4-8.

Further, each metal liquid launder uses the mould body axis as the center equipartition setting.

Further, the die body is made of graphite material or ceramic material.

Further, the stable straightening terminal is made of graphite materials or ceramic materials.

Further, the inner diameter of the crystallization cavity is 2-5um larger than the outer diameter of the matching section.

Further, the inner diameter of the crystallization runner gradually decreases from one side close to the crystallization cavity to one side of the bimetal composite outlet.

Further, the tail end of the feeding section is provided with an outer end conical structure, and the tail end of the matching section is provided with an inner end conical structure.

Compared with the prior art, the utility model has the following advantages:

the utility model has reasonable structural design, effectively increases the stability of the base material when the base material passes through the die by using the stable straightening terminal and the die body in a matched manner, and reduces the distance from the liquid state to the semi-solid state of the metal to the solid state, thereby effectively correcting the problem of eccentricity during the double metal composite casting.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute an undue limitation on the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the structure of the mold body of the present utility model;

FIG. 3 is a left side view of the mold body of FIG. 2;

FIG. 4 is a schematic view of a stable alignment terminal in accordance with the present utility model;

fig. 5 is a cross-sectional view of the utility model.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the utility model, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

An anti-eccentric die for continuous layer casting, as shown in figures 1 to 5, comprises a die body 1 and a stable straightening terminal 2 arranged at the front end of the die body; one end of the die body is provided with a crystallization cavity 3, the other end of the die body is provided with a bimetal composite outlet 4, a crystallization runner 5 is communicated between the crystallization cavity and the bimetal composite outlet, and the crystallization runner and the crystallization cavity are coaxially arranged. The stable alignment terminal and the rear end body can be detached, in practical application, the stable alignment terminal is allowed to rotate along with the base material in the layered casting process, so that the service life of the die structure is effectively prolonged.

It should be noted that, the outer wall of one end of the die body far away from the stable alignment terminal can be provided with the external thread structure 14, so that the die body can be conveniently assembled on the equipment structure, and the die body is very convenient to assemble, disassemble and replace. A plurality of clamping grooves 15 are formed in the end face, different from the end face, of the end face, provided with the external thread structure, of the die body, so that the tool can clamp the clamping grooves to mount and dismount the die body.

The stable straightening terminal comprises a positioning section 6, one end of the positioning section is provided with a matching section 7, the other end of the positioning section is provided with a feeding section 8, a feeding channel 9 is arranged inside the stable straightening terminal, and the feeding channel and the crystallization flow channel are coaxially arranged. In order to remove the influence of the shaking of the substrate during the movement in the continuous casting process on the eccentricity, the diameter of the feed channel is designed to be equal to or slightly larger than the diameter of the substrate, and the diameter deviation range is controlled to be 5-10um in order to ensure the accuracy.

A plurality of metal liquid launders 10 communicated with the crystallization cavity are arranged on the side wall of the die body; the outer wall of the matching section is in sliding fit with the inner wall of the crystallization cavity, the tail end of the mold body is propped against the matching surface 11 of the positioning section, the length of the crystallization cavity is larger than that of the matching section, so that a crystallization flow space is formed between the matching section and the side wall of the crystallization cavity after the stable straightening terminal is arranged on the mold body, the matching section at the rear end of the stable straightening terminal is provided with an inner end conical structure, and the sufficient space is reserved for flowing after the metal solution enters the metal liquid launder. Typically, the metal liquid launder is provided with 4-8 launders. Preferably, each metal liquid launder uses the mould body axis as the center equipartition setting. The external molten metal launder can enter the crystallization cavity, the number of launders and the pore size of the launders are required to be determined according to the thickness and the production speed of the cast metal layer, and the number and the pore size of the launders can meet the following conditions: metal inflow volume > metal crystallization volume (outlet volume); wherein metal inflow volume = pore size number single pore diameter area liquid metal flow; metal crystallization amount = surface metal crystallization volume x tapping rate per second. The volume of the crystallization cavity is 3-8 times of the crystallization amount of the product, and too small volume can cause incomplete surface crystallization of the product, and too large volume can cause the reduction of production efficiency, the increase of eccentricity or the waste of materials caused by the increase of the size of the die. The inner diameter of the crystallization runner gradually decreases from one side close to the crystallization cavity to one side of the bimetal composite outlet, which is more beneficial to casting and molding of the bimetal composite product.

The die body is made of graphite material or ceramic material, and the stable straightening terminal is made of graphite material or ceramic material. The material has high heat conductivity, high temperature resistance, no action with metal melt, small thermal expansion coefficient and good thermal shock stability.

The tail end of the feeding section is provided with an outer end conical structure 12, and the tail end of the matching section is provided with an inner end conical structure 13. The inner diameter of the crystallization cavity is 2-5um larger than the outer diameter of the matching section. The front end of the stable straightening terminal protrudes and is in butt joint with the front core bowl through the conical structure of the outer end, so that the centering degree of the feed inlet and the crystallization cavity is consistent, the stability of the straightening terminal is ensured, the rear end of the stable straightening terminal stretches into the matching section in the die body to be consistent with the inner diameter of the crystallization cavity, the tolerance is controlled to be 2-5um, and the smaller the tolerance is, the better the stability and the better the centering are.

The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An anti-eccentric die for continuous lamellar casting is characterized in that: the die comprises a die body and a stable straightening terminal arranged at the front end of the die body; one end of the die body is provided with a crystallization cavity, the other end of the die body is provided with a bimetal composite outlet, a crystallization runner is communicated between the crystallization cavity and the bimetal composite outlet, and the crystallization runner and the crystallization cavity are coaxially arranged; the stable straightening terminal comprises a positioning section, one end of the positioning section is provided with a matching section, the other end of the positioning section is provided with a feeding section, a feeding channel is arranged in the stable straightening terminal, and the feeding channel and the crystallization runner are coaxially arranged; the outer wall of the matching section is in sliding fit with the inner wall of the crystallization cavity, the tail end of the mold body is propped against the matching surface of the positioning section, and the length of the crystallization cavity is longer than that of the matching section, so that a crystallization flow space is formed between the matching section and the side wall of the crystallization cavity after the stable straightening terminal is arranged on the mold body; a plurality of metal liquid launders communicated with the crystallization cavity are arranged on the side wall of the die body.

2. An anti-decentering mold for continuous layered casting according to claim 1, wherein: the number of the metal liquid launders is 4-8.

3. An anti-decentering mold for continuous layered casting according to claim 2, wherein: all the metal liquid launders are uniformly distributed by taking the axis of the die body as the center.

4. An anti-decentering mold for continuous layered casting according to claim 1, wherein: the die body is made of graphite materials or ceramic materials.

5. An anti-decentering mold for continuous layered casting according to claim 1, wherein: the stable straightening terminal is made of graphite materials or ceramic materials.

6. An anti-decentering mold for continuous layered casting according to claim 1, wherein: the inner diameter of the crystallization cavity is 2-5um larger than the outer diameter of the matching section.

7. An anti-decentering mold for continuous layered casting according to claim 1, wherein: the inner diameter of the crystallization runner gradually decreases from one side close to the crystallization cavity to one side of the bimetal composite outlet.

8. An anti-decentering mold for continuous layered casting according to claim 1, wherein: the feeding section is provided with an outer end conical structure at the tail end, and an inner end conical structure is arranged at the tail end of the matching section.