CN106363135A

CN106363135A - Core head forming method of manual core making

Info

Publication number: CN106363135A
Application number: CN201610931724.7A
Authority: CN
Inventors: 牛光华; 吉继昌; 韩光明; 曾涛
Original assignee: Xinxing Heavy Industry Hubei 3611 Mechanical Co Ltd
Current assignee: Xiangyang Xinxing Precision Manufacturing Co ltd
Priority date: 2016-10-24
Filing date: 2016-10-24
Publication date: 2017-02-01
Anticipated expiration: 2036-10-24
Also published as: CN106363135B

Abstract

The invention provides a core head forming method of manual core making. The core head forming method of manual core making comprises the following steps: firstly, a core head forming metal rod is placed in a core box core head hole, one end surface of the core head forming metal rod is parallel and level to the bottom end surface of the core box core head hole, the other end of the core head forming metal rod enters a cavity of a core box, and then the core box is filled with core sands to make a core; and after the core is made, the core sands with the core head forming metal rod are baked, and the core head forming metal rod is cured in the core sands, wherein during pouring, the core head forming metal rod has the action of positioning and supporting the core sands. The core head forming method of manual core making is suitable for manual core making; when a core head is too small and long without liability in forming, the problem that the core head is not liable to form as being too small (with the diameter smaller than 10mm) and having the length-diameter ratio being larger than 5 during manual core making is solved; and according to the core head forming method, the core is convenient to make, the core sands can be positioned and supported, and the production efficiency is improved.

Description

A kind of manual core making core print manufacturing process

Technical field

The invention belongs to machine casting industry and in particular to a kind of manual core making core print shape method.

Background technology

In product casting advanced development, having a lot of craft sand core heads forming core cavities, little (its diameter is less than 10mm) and draw ratio is more than 5, in coremaking, sand core head is difficult to molding, impact sand core head to the positioning of core, support work( Can, become a great problem of core print shaping.

Content of the invention

It is an object of the invention to overcoming deficiencies of the prior art and providing a kind of simple, convenient core Core print manual core making core print manufacturing process to core positioning and support in casting.

The technical scheme is that a kind of manual core making core print manufacturing process, comprise the steps: first to shape core print Metal bar is placed at core box core print hole, and an end face of core print form metal rod is concordant with core box core print bottom hole end face, core print The form metal rod other end enters in the cavity of core box, then core sand filling core box is carried out coremaking；Core print will be carried after the completion of coremaking The core sand of form metal rod is toasted, during core print form metal rod is solidificated in.During cast, core print shapes rod and plays and determines for core Position simultaneously supports core to act on.

There is gap between core print form metal rod of the present invention and core box core print hole.

Core print form metal rod one end insertion core box SMIS head bore of the present invention, the other end is fixed in core.

The present invention is useful in manual core making, core print too small and long and be difficult shape when, solve core print mistake during manual core making Little (its diameter be less than 10mm) and draw ratio are more than 5 and the problem of not easy-formation, and the present invention facilitates coremaking, and can for core calmly Position, support, improve production efficiency.The present invention drives in heavy-duty off-road vehicle six and tests on the jackshaft housing of brave warrior's car, shortens In the trial-production cycle, avoid repeatedly manufacturing experimently and reduce experimental manufacturing cost, the trial-production for like product from now on and batch production lay the first stone.

Brief description

Fig. 1 is method of the present invention schematic diagram.

In figure 1, core box；2nd, core print form metal rod；3rd, core sand.

Specific embodiment

In Fig. 1, the present invention includes core box 1, and core box 1 body uses alignment pin or seam positioning each other, and (little core box is manual Fixing, big core box clamp fastens).First core print form metal rod 2 is placed at core box 1 core print hole in manual core making, Seek an end face (to the core print form metal excellent 2 positioning works concordant with core box 1 core print bottom hole end face of core print form metal rod 2 With), core print form metal rod 2 other end enters in the cavity of core box 1, more by hand core sand 3 is inserted core box 1, manual afterwards or use Wooden mallet consolidation core sand carries out coremaking.Core with core print form metal rod 2 after the completion of coremaking is toasted, core print shapes gold Belong to rod 2 to be solidificated in core, during cast, core print shaping rod plays and positions for core and support core to act on.

Claims

1. a kind of manual core making core print manufacturing process is it is characterised in that comprise the steps: first by core print form metal rod (2) peace It is placed at core box (1) core print hole, an end face of core print form metal rod (2) is concordant with core box (1) core print bottom hole end face, core print Form metal rod (2) other end enters in the cavity of core box (1), then core sand (3) filling core box (1) is carried out coremaking；By coremaking After the completion of with core print form metal rod (2) core sand (3) toasted, core print form metal rod (2) be solidificated in core sand (3).

2. a kind of manual core making core print manufacturing process according to claim 1 it is characterised in that: described core print form metal There is gap between excellent (2) and core box (1) core print hole.

3. a kind of manual core making core print manufacturing process according to claim 1 it is characterised in that: described core print form metal Excellent (2) one end insertion core box (1) SMIS head bore, the other end is fixed in core.