Part for cast production fabricated by wet type paper-making method

A technology for castings and components, applied in the field of manufacturing components for casting manufacturing, can solve problems such as inability to use cores

Inactive Publication Date: 2005-09-21
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this core cannot be used when forming a gating system corresponding to various cavity shapes including a hollow runner.

Method used

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  • Part for cast production fabricated by wet type paper-making method
  • Part for cast production fabricated by wet type paper-making method
  • Part for cast production fabricated by wet type paper-making method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] After forming a predetermined fiber laminate with the following raw material slurry, the fiber laminate is dewatered and dried to obtain a sprue for sprue having the shape shown in Figure 2(a) and having the following physical properties (manufactured by casting Use paper-made components, weighing about 16g).

[0095]

[0096] After dispersing the organic fibers and inorganic fibers blended below into water and adjusting to a slurry of about 1% (the weight ratio of the total weight of organic fibers and inorganic fibers to water is 1%), the following binder and The flocculant is added to the slurry, and the mixing ratio (weight ratio) of the organic fiber, the inorganic fiber, and the binder is adjusted to a raw material slurry having the following value.

[0097] [Combination of raw material slurry]

[0098] Organic fiber: old newspaper, average fiber length is 1mm, drainage (hereinafter referred to as CSF) is 150cc;

[0099] Inorganic fiber: carbon fiber (manufactured by...

Embodiment 2

[0117] After forming a predetermined fiber laminate with the following raw material slurry, the fiber laminate is dehydrated and dried to obtain an intermediate molded body having the shape shown in FIG. 2(a). In addition, the following binder was impregnated on the intermediate molded body, dried and thermally cured to obtain a sprue runner having the following physical properties (paper-made member for casting production, weight approximately 28 g).

[0118]

[0119] Disperse the organic fibers and inorganic fibers blended below in water and adjust to a slurry of about 1% (the total weight of organic fibers and inorganic fibers is 1% by weight relative to water), and then add the following adhesive to the slurry The mixing ratio (weight ratio) of the organic fiber, the inorganic fiber, and the binder is adjusted to a raw material slurry having the following value.

[0120] [Mixing of raw material slurry]

[0121] Organic fiber: old newspaper, average fiber length is 1mm, CSF is...

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Abstract

An element made by papermaking for use in the production of a die casting which comprises an organic fiber, an inorganic fiber, and a binder. The contents of the organic fiber, the inorganic fiber, and the binder are preferably 10 to 70 parts by weight, 1 to 80 parts by weight, and 10 to 85 parts by weight, respectively. The binder is preferably an organic binder. The organic fiber is preferably pulp fiber.

Description

Technical field [0001] The invention relates to a paper-making member for the manufacture of castings and a method for manufacturing castings using the same. Background technique [0002] In the manufacture of castings, generally, foundry sand is used to form a mold with a cavity (or a core if necessary) inside, and at the same time to communicate with the cavity to form a sprue cup, a sprue, and a horizontal sprue for supplying molten metal to the cavity. Gates and internal gates (hereinafter referred to as gating systems), but also form vents, feeding risers and overflow risers communicating with the outside. Such pouring systems, vents, feeding risers, and overflow risers are usually formed integrally with foundry sand and a mold at the same time, or a pouring system made of refractory materials such as pottery and bricks is used to form the pouring system. [0003] When the casting mold and the above-mentioned pouring system are integrally formed with foundry sand, it is diff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C1/10B22C1/00B22C9/04B22C9/08
CPCB22C9/046B22C1/167B22C9/08Y10T428/13B22C9/082B22C19/00
Inventor 津浦德雄小林洋昭高城荣政仲井茂夫惣野时人
Owner KAO CORP
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