CN216540740U

CN216540740U - Large blade iron wire shell manufacturing tool

Info

Publication number: CN216540740U
Application number: CN202122462820.0U
Authority: CN
Inventors: 孙春鹏
Original assignee: Wuxi Jinye Precision Casting Co ltd
Current assignee: Wuxi Jinye Precision Casting Co ltd
Priority date: 2021-10-13
Filing date: 2021-10-13
Publication date: 2022-05-17
Anticipated expiration: 2031-10-13

Abstract

The utility model provides a large-blade iron wire shell manufacturing tool which comprises an inner sprue and an upper sprue which are arranged above a poured blade wax mold body, and an iron wire structure wound outside the blade wax mold body, wherein a mold shell formed by multilayer pouring is further arranged on the outer side of the blade wax mold body along the iron wire structure; the iron wire structure includes from last to wrapping up an iron wire outside blade wax matrix body down, and an iron wire is provided with a plurality ofly, and the interval is the same between a plurality of iron wires, still is provided with No. two iron wires on one side of blade wax matrix body is kept away from to an iron wire. The utility model effectively solves the problems of shrinkage porosity and shrinkage cavity of the ultrathin blade, and the reject ratio is greatly reduced through dye penetrant inspection and magnetic powder inspection acceptance.

Description

Large-blade iron wire shell manufacturing tool

Technical Field

The utility model mainly relates to the technical field of precision casting, in particular to a large-blade iron wire shell manufacturing tool.

Background

The large blade is long in length, the pressure applied by molten steel is strong, the number of coating layers of the formwork is increased in order to ensure the strength of the formwork, and the number of coating layers of some large blades reaches 30. The length of the large blade is 1085 mm.

However, the excessively thick and heavy coating not only reduces the air permeability of the formwork and slows down the construction period, but also increases the operation difficulty of each process, and causes the increase of the raw material cost, and the heaviest large-blade formwork shell is 180 Kg.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a large blade iron wire shell manufacturing tool, which comprises an inner pouring gate 2 and an upper pouring gate 1 which are arranged above a poured blade wax mold body 3, and an iron wire structure wound outside the blade wax mold body 3, wherein a mold shell 4 formed by multilayer pouring is further arranged on the outer side of the blade wax mold body 3 along the iron wire structure;

iron wire structure includes from last to wrapping up No. one iron wire 5 outside blade wax matrix body 3 down, an iron wire 5 is provided with a plurality ofly, and is a plurality of the interval is the same between an iron wire 5 No. one iron wire 5 still is provided with No. two iron wires 6 on keeping away from one side of blade wax matrix body 3.

Preferably, the wire structure is not in direct contact with the blade wax pattern body 3.

Preferably, the interval that is located between a coplanar iron wire 5 and No. two iron wires 6 is greater than the interval between a iron wire 5 and blade wax matrix body 3, is less than the interval between No. two iron wires 6 and the 4 lateral surfaces of mould shell.

Preferably, a plurality of iron wire 5 is vertical array form setting, and the interval is 50mm, the quantity of iron wire 5 is 21.

Preferably, No. two iron wires 6 are provided with a plurality ofly from last to down, and is a plurality of No. two iron wires 6's shape is unanimous with a plurality of iron wire 5's shape.

Preferably, the number of formwork layers 4 is 19 to 25.

Preferably, the number of formwork layers 4 is 19.

The utility model has the beneficial effects that: the problems of shrinkage porosity and shrinkage cavity of the ultrathin blade are effectively solved, the reject ratio is greatly reduced through dye penetrant inspection and magnetic particle inspection acceptance, and in addition, the shell manufacturing cost is reduced by 30% by adopting the structure.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a cross-sectional view of the present invention with respect to a formwork;

in the figure, the position of the upper end of the main shaft,

1. an upper gate; 2. an inner gate; 3. a blade wax pattern body; 4. a formwork; 5. a first iron wire;

6. no. two iron wires.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the utility model only and are not intended to limit the scope of the utility model.

As shown in fig. 1-2, the present invention includes: the blade wax pattern comprises an inner sprue 2 and an upper sprue 1 which are arranged above a poured blade wax pattern body 3, and an iron wire structure wound outside the blade wax pattern body 3, wherein a formwork 4 formed by multilayer pouring is further arranged on the outer side of the blade wax pattern body 3 along the iron wire structure;

iron wire structure includes from last to wrapping up an iron wire 5 outside blade wax matrix body 3 down, an iron wire 5 is provided with a plurality ofly, and is a plurality of the interval is the same between an iron wire 5 still is provided with iron wire 6 No. two on keeping away from one side of blade wax matrix body 3.

In this embodiment, the wire structure is preferably not in direct contact with the blade wax pattern body 3.

Set up above-mentioned structure, can effectively avoid the direct damage to the blade of iron wire, also can prevent that the iron wire from exposing outside the mould shell, effectively guarantee the intensity of mould shell to and the effect in the assurance use.

In this implementation preferably, the interval that lies in between a coplanar iron wire 5 and No. two iron wires 6 is greater than the interval between a iron wire 5 and blade wax matrix body 3, is less than the interval between No. two iron wires 6 and the 4 lateral surfaces of mould shell.

The arrangement of the structure is characterized in that the distance between the first iron wire 5 and the second iron wire 6 is in a more central position so as to ensure that the integral strength of the formwork can be effectively improved after the iron wires are utilized; the distance between the first iron wire 5 and the blade wax mold body 3 is used for preventing the iron wire from being exposed outside the mold shell; the distance between the second iron wire 6 and the outer side surface of the formwork 4 is used for further effectively ensuring the strength of the formwork.

In this implementation, it is preferred that a plurality of iron wire 5 be vertical array form setting, and the interval is 50mm, the quantity of iron wire 5 is 21.

Set up above-mentioned structure, from the whole consideration of blade, from last can both obtain the promotion of intensity because of the iron wire down.

In this embodiment, preferably, the second iron wire 6 is provided in plurality from top to bottom, and the shape of the second iron wire 6 is identical to the shape of the first iron wires 5.

Set up above-mentioned structure, utilize the multilayer iron wire to realize the increase of mould shell intensity, the effect that whole material thickness reduces.

In this embodiment, the number of formwork 4 layers is preferably 19 to 25.

In this embodiment, the number of formwork 4 layers is preferably 19.

In use, after tests, the number of coating layers of 30 layers before the iron wire is used is reduced to 19 layers, so that slight cracks are formed, and three layers of insurance are reserved for increasing the insurance factor.

Through multiple casting, the condition that the formwork is cracked does not appear in the scheme of using this frock production, and intensity can satisfy the operation requirement, in addition, has still practiced thrift 30-33% sand powder raw and other materials to alleviate the work burden of coating process, make subsequent dewaxing, casting and clearance all become a little easily. In the existing production process, a 1050 type large blade is the largest blade produced by a company, the formwork is 180Kg due to the overlong length, and the formwork is reduced to 120Kg by adopting an iron wire shell manufacturing method.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. The large-blade iron wire shell manufacturing tool is characterized by comprising an inner pouring gate (2) and an upper pouring gate (1) which are arranged above a poured blade wax mold body (3), and an iron wire structure wound outside the blade wax mold body (3), wherein a mold shell (4) formed by pouring multiple layers is further arranged on the outer side of the blade wax mold body (3) along the iron wire structure;

iron wire structure includes from last iron wire (5) of wrapping up outside blade wax matrix body (3) down, iron wire (5) are provided with a plurality ofly, and are a plurality of interval is the same between iron wire (5) still be provided with No. two iron wires (6) on one side of blade wax matrix body (3) is kept away from in iron wire (5).

2. The large blade iron wire shell making tool of claim 1, which is characterized in that: the iron wire structure is not in direct contact with the blade wax mould body (3).

3. The large blade iron wire shell making tool of claim 2, which is characterized in that: be located the coplanar iron wire (5) and No. two intervals between iron wire (6) are greater than the interval between iron wire (5) and blade wax matrix body (3), are less than the interval between No. two iron wire (6) and the mould shell (4) lateral surface.

4. The large-blade iron wire shell manufacturing tool according to claim 3, characterized in that: a plurality of iron wire (5) are vertical array form setting, and the interval is 50mm, the quantity of iron wire (5) is 21.

5. The large blade iron wire shell making tool of claim 4, which is characterized in that: no. two iron wire (6) are provided with a plurality ofly from last to down, and are a plurality of the shape of No. two iron wire (6) is unanimous with the shape of a plurality of iron wire (5).

6. The large blade iron wire shell making tool of claim 5, which is characterized in that: the number of the shuttering (4) is 19-25.

7. The large blade iron wire shell making tool of claim 6, which is characterized in that: the number of the shuttering (4) is 19.