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High-temperature-resistant paper pouring pipe for producing metal casting and preparing method of high-temperature-resistant paper pouring pipe

A technology of metal casting and high temperature resistance, which is applied in the production of high temperature resistant paper pouring pipes for metal casting and its preparation, which can solve the problems of high processing costs of non-renewable resources, and achieve the effects of light weight, improved quality, and reduced wear

Active Publication Date: 2017-06-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disposal cost of non-renewable resources formed after the use of products of this scale is quite high. The impact of waste and non-renewability on the environment and human health, as well as the impact on the wear and tear of processing equipment and the quality of casting products has become an issue of increasing concern in the foundry industry. Therefore, it is necessary to find A new pouring tube with low pollution, energy saving, light weight, non-fragile and easy to handle after use

Method used

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  • High-temperature-resistant paper pouring pipe for producing metal casting and preparing method of high-temperature-resistant paper pouring pipe
  • High-temperature-resistant paper pouring pipe for producing metal casting and preparing method of high-temperature-resistant paper pouring pipe
  • High-temperature-resistant paper pouring pipe for producing metal casting and preparing method of high-temperature-resistant paper pouring pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1, a kind of preparation method that is used for producing high temperature resistant paper pouring pipe for metal casting, carries out following steps successively:

[0050] a. Preparation of waste paper pulp:

[0051] Add the collected waste printed matter or / and waste cardboard and other waste paper materials into the pulper at room temperature and water at a weight ratio of 1:15 to prepare pulp, and then directly put the pulp into the dehydration container or dehydration equipment Dehydrated to make the water content ≤ 55%, for later use;

[0052] b. Preparation of filling materials and paper fiber modified materials:

[0053] Filling materials are: 200 mesh corundum fine powder, 200 mesh mullite fine powder, 200 mesh montmorillonite fine powder, 200 mesh andalusite fine powder;

[0054] The paper fiber modified material is obtained by mixing boron modified phenolic resin (FB resin): epoxy resin (E-44) = 1:1 mass ratio.

[0055] c. Weigh the above prep...

Embodiment 2

[0066] Embodiment 2, a kind of preparation method that is used for producing high temperature resistant paper pouring tube for metal casting,

[0067] Its formulation is composed of the following components by weight, calculated on dry matter:

[0068]

[0069] Paper fiber modified material (boron modified phenolic resin (FB resin): epoxy resin (E-44) = 1:1) 1.5%;

[0070] Step f) is a modification reaction at 140°C for 3 hours;

[0071] The rest are equal to Example 1.

Embodiment 3

[0072] Embodiment 3, a kind of preparation method that is used for producing high temperature resistant paper pouring tube for metal casting,

[0073] In step a), the weight ratio of waste paper material to water is 1:10;

[0074] Its formulation is composed of the following components by weight, calculated on dry matter:

[0075]

[0076] Paper fiber modified material (boron modified phenolic resin (FB resin): epoxy resin (E-44) = 1:1) 2%;

[0077] Step f) is a modification reaction at 130°C for 4 hours;

[0078] The rest are equal to Example 1.

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Abstract

The invention discloses a high-temperature-resistant paper pouring pipe for producing metal casting. The high-temperature-resistant paper pouring pipe comprises, by weight, 60%-75% of old paper stock, 2%-5% of 200-400-mesh corundum fine powder, 13%-19% of 200-400-mesh mullite fine powder, 3%-5% of 200-400-mesh montmorillonite fine powder, 5%-10% of 200-400-mesh andalusite fine powder and 1%-2% of a paper fiber modified material. The invention further discloses a preparing method of the above high-temperature-resistant paper pouring pipe. The above ingredients are evenly mixed, a mixture is subject to mixing to obtain a blank, and an extrusion machine is used for preparing the blank into a blank pipe, and the blank pipe is dried to be subject to modified reacting.

Description

technical field [0001] The invention relates to a high-temperature-resistant paper pouring pipe (including pulp formula) for producing metal casting and a preparation method thereof. Background technique [0002] At present, pouring pipes for metal casting are usually pouring ceramic pipes or porcelain pipes made of refractory materials such as pottery and porcelain. The pipe wall of such traditional pouring pipes is very thick, heavy, brittle, and easy to peel off. The refractory raw materials need to be broken during preparation. , ball milling, ingredient mixing, molding and final firing, the production process is complicated, the production cycle is long, the energy consumption is high, the environmental pollution is large, and the recovery cost after one-time consumption is high, because there are many hard solid wastes after one-time consumption, Not easy to remove. According to incomplete statistics from Zhejiang Province, a province with a large production volume, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/54B22C9/08B22C1/00
CPCB22C1/00B22C9/082B22D41/54
Inventor 谢晓梅廖敏廖泽淇
Owner ZHEJIANG UNIV
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