CN102380582A

CN102380582A - Cold core making method

Info

Publication number: CN102380582A
Application number: CN2011103947993A
Authority: CN
Inventors: 杨林龙
Original assignee: Suzhou Mingzhi Technology Co Ltd
Current assignee: Suzhou Mingzhi Technology Co Ltd
Priority date: 2011-12-02
Filing date: 2011-12-02
Publication date: 2012-03-21
Anticipated expiration: 2031-12-02
Also published as: CN102380582B

Abstract

The invention relates to a cold core making method, which comprises the following steps of: preparing a plastic bag with an opening, putting the plastic bag into an embedded core die, filling the plastic bag with fillers, and sealing the opening of the plastic bag to obtain an embedded core; putting the embedded core into a cold core box, and making a core by using a cold core box making process to obtain a sand box with the embedded core; and taking the sand core with the embedded core from the cold core box, opening the opening of the plastic bag of the embedded core, taking the fillers out, and taking the plastic bag out to obtain the sand box. In the invention, a core is made in a core embedding way instead of a casting way, so that the quantity of sand cores for producing a cast can be reduced, the structure of the cast can be optimized, the weight is reduced, different complex structures are designed, materials are utilized fully, energy is saved, the environment is protected, and pollution is lowered.

Description

A kind of cold core core-making method

Technical field

the present invention relates to casting field, particularly relate to a kind of cold core core-making method.

Background technology

are present, and conventional carries out the branch core according to different casting structures.Based on present mode, can be divided into a plurality of cores, through the method for combination acquisition inner core group, the method makes the casting dimension fluctuation through core assembly, and generation gas causes the defective of foundry goods when needing gluing to fix cast during core assembly.

Summary of the invention

the object of the invention provides a kind of cold core core-making method.

For achieving the above object, the technical scheme that the present invention adopts is:

A kind of cold core core-making method may further comprise the steps:

(1), prepare to have the plastic bag of opening, described plastic bag is placed in the edge cores, in described plastic bag, fill with filler, and, make the edge core the opening sealing of described plastic bag;

(2), described edge core is placed in the cold-box, adopt cold core box core process coremaking, make and have the core of inlaying core;

(3), from described cold-box, take out and have the core of inlaying core, the opening of the plastic bag of described edge core is opened the taking-up filler, make core after taking out plastic bag at last.

preferably; In the step (1); Offer suction mouth on the described edge cores; After in described plastic bag is placed into described edge cores, make on the inwall that described plastic bag is close to described edge cores, in described plastic bag, fill with filler again through described suction mouth is air-breathing.

preferably, the wall thickness of described plastic bag is 0.1～0.2mm.

preferably, described filler is not for making the roughing sand of any processing.

preferably in the step (2), are placed into described edge core in the cold-box, in described cold-box, penetrate sand, through air blowing core sand are solidified, and make to have the core of inlaying core.

Because the technique scheme utilization, the present invention compared with prior art has advantage and effect:

the present invention substitutes the casting core mode with edge core mode; Not only can reduce the core quantity of producing foundry goods; Can also optimize the structure decrease weight of foundry goods and be designed to different labyrinths, make full use of material, energy-conserving and environment-protective, minimizing are polluted.

Description of drawings

Accompanying drawing 1 is placed on the sketch map in the edge cores for plastic bag among the present invention;

Accompanying drawing 2 is placed on the sketch map in the cold-box for edge core among the present invention;

Accompanying drawing 3 has the core sketch map of inlaying core among the present invention;

Accompanying drawing 4 is for having the core sketch map of plastic bag among the present invention;

5 medium sand core sketch mapes of the present invention of accompanying drawing.

wherein: 1, edge cores; 10, suction mouth; 2, plastic bag; 20, opening; 3, roughing sand; 4, cold-box; 40, cold-box patrix; 41, cold-box counterdie; 42, penetrate Sha Kou; 5, core.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

A kind of cold core core-making method may further comprise the steps:

The edge core is made:

(1), prepare a plastic bag 2 with opening 20, the thickness of plastic bag 2 is that 0.15mm is the most suitable; Prepare an edge cores 1, offer suction mouth 10 on the sidewall of edge cores 1;

Plastic bag 2 is placed in the edge cores 1; Plastic bag 2 is close on the inwall of edge cores 1, in plastic bag 2, fills with filler again, in the present embodiment; Filler selects not do the roughing sand 3 of any processing; With opening 20 sealings of plastic bag 2, make required edge core after filling with, as shown in Figure 1;

Cold core is made:

(1), prepare cold-box 4, comprise cold-box patrix 40, cold-box counterdie 41, offer on the cold-box patrix 40 and penetrate sand mouth 42, as shown in Figure 2;

To inlay core and be placed in the cold-box 4, the coremaking of employing cold core box core process is penetrated sand in cold-box 4, through air blowing core sand is solidified, and makes to have the core 5 of inlaying core;

(2), open cold-box patrix 40, cold-box counterdie 41, take out and have the core 5 of inlaying core, as shown in Figure 3; The opening 20 of the plastic bag 2 of inlaying core is opened all roughing sand of outflow, as shown in Figure 4; Take out the core 5 that makes final pourable foundry goods behind the plastic bag 2 at last, as shown in Figure 5.

the foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.

Claims

1. cold core core-making method is characterized in that: may further comprise the steps:

(2), described edge core is placed in the cold-box, adopt cold core box core process coremaking, make and have the core of inlaying core;

2. a kind of cold core core-making method according to claim 1; It is characterized in that: in the step (1); Offer suction mouth on the described edge cores; After in described plastic bag is placed into described edge cores, make on the inwall that described plastic bag is close to described edge cores, in described plastic bag, fill with filler again through described suction mouth is air-breathing.

3. according to a kind of cold core core-making method shown in the claim 1, it is characterized in that: the wall thickness of described plastic bag is 0.1～0.2mm.

4. a kind of cold core core-making method according to claim 1 is characterized in that: described filler is not for making the roughing sand of any processing.

5. a kind of cold core core-making method according to claim 1 is characterized in that: in the step (2), described edge core is placed in the cold-box, in described cold-box, penetrates sand, through air blowing core sand is solidified, make and have the core of inlaying core.