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Mold-releasing agent for oil die casting, method for setting solvent mixing ratio, casting method and spray device

A release agent, oil-based technology, applied in the field of injection units and punches, can solve the problems such as the inability of molten metal to reach the cavity, the low adhesion efficiency of water-soluble release agents, and the inability to manufacture cast products, avoiding the problem of Dunfrost phenomenon, excellent wettability, and the effect of reducing the spread

Active Publication Date: 2007-08-01
AOKI SCIENCE INSTITUTE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Eventually, the molten metal cannot reach every tiny corner of the cavity
As a result, the so-called "undercasting" and "shrinkage" phenomena occur and make it impossible to manufacture complete cast products
Also, due to the low adhesion efficiency of water-soluble mold release agents, the oil film on the metal surface is thinner

Method used

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  • Mold-releasing agent for oil die casting, method for setting solvent mixing ratio, casting method and spray device
  • Mold-releasing agent for oil die casting, method for setting solvent mixing ratio, casting method and spray device
  • Mold-releasing agent for oil die casting, method for setting solvent mixing ratio, casting method and spray device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to 5 and comparative example 1 to 3

[0102] (A) Components and results of measurement tests

[0103] Table 1 below shows the components, physical property values, results of the adhesion test, and results of the friction test of Examples 1, 2, 3, 4 and 5. Moreover, the following Table 1 shows the components, physical property values, results of adhesion test and results of friction test of Comparative Examples 1 to 3, that is, the water-soluble release agents prepared by the applicant of the present invention. The mold agent is water-soluble pigment release agent (trade name: Lubrolene A-704); water-soluble release agent (trade name: Lubrolene A-201); and water-soluble release agent (trade name: Lubrolene A-1609) .

Embodiment 6 to 11 and comparative example 4 to 7

[0144] Hereinafter, the release agents of Examples 6 to 11, which contain a wettability-improving additive, will be described with reference to the release agents of Comparative Examples 4 to 7.

[0145] (A) Components and test results

[0146] Table 4 below shows the components, physical property values, adhesion test results, and friction test results of the oil-based release agents of Examples 6, 7, 8, 9, 10, and 11. Table 5 below shows the physical property values ​​of the oil-based release agents of Comparative Examples 4, 5 and 6 and the water-soluble release agent of Comparative Example 7 (trade name: Lubrolene A-1609, manufactured by AOKI SCIENCE INSTITUTE CO., Ltd.) , components, adhesion test results and friction test results.

[0147] Table 4

[0148] Example

6

7

8

9

10

11

Component (weight%)

water

0

0

0

0

0

0

solvent

...

Embodiment 12

[0173] Next, a spray unit for uniformly applying the oil-based release agent of the present invention will be described. The unit is as described above. Casting quality was compared in Example 12 by using an actual machine.

[0174] Table 7 below shows properties of products obtained by performing aluminum die casting using the release agents of Examples 13 to 16 and Comparative Examples 8, 9 and the above-mentioned injection unit. In this case, the release agent of Example 4 was used for Examples 13 and 14; the release agent of Example 6 was used for Examples 15 and 16; the release agent of Comparative Example 7 was used for Comparative Example 8; and the release agent of Comparative Example 4 was used in Comparative Example 9. As shown in Figure 1, the mold used in Example 12 can manufacture two products at the same time, and has a casting structure consisting of upper and lower sliders in the cavity, wherein the cavity consists of a movable mold and a fixed The mold is f...

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Abstract

The invention provides an oil type release agent die casting containing 70 to 98 parts by weight of a solvent having a specified flash point, 1 to 10 parts by weight of mineral oils and / or synthetic oils having a high viscosity, 15 parts by weight or less of a silicone oil, and 1 to 5 parts by weight of additives having a lubricating function, wherein the flash point of the agent is in the range of 70 to 170 DEG C, and dynamic viscosity of the agent is 2 to 30 mm 2 / s or higher at 40 DEG C, and a method for setting a mixing ratio of the solvent, a casting method, and a spraying unit for the case of using the release agent.

Description

technical field [0001] The present invention relates to an oil release agent for die casting, a method of setting a solvent mixing ratio, a casting method using the oil release agent, and a spray unit. The invention is also applicable to plunger chips as a lubricant. Background technique [0002] It is known that in the die casting process, in order to lubricate the cavity of the mold, an oil film is formed on the surface of the cavity of the mold by spraying a lubricant, which is called a release agent after die opening. This oil film prevents the cavity from bonding with non-ferrous molten metals such as aluminum, magnesium and zinc on the cavity and enables continuous casting. Release agents for die casting are broadly classified into oil-based release agents and water-soluble release agents. In view of productivity, safety, and working environment, water-soluble mold release agents have been frequently used in recent years. [0003] However, 40 years ago, the release ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00B22D17/20C10M169/04C10M101/02C10M105/24C10M105/34C10M105/46
Inventor 青木久治外川浩司大平博文小林正尚山崎裕一小松原博昭清水俊明井泽龙介古川秀树原田雅行横井光义鬼头雅幸依冈敬吾早矢仕明博
Owner AOKI SCIENCE INSTITUTE CO LTD
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