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Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant

A non-graphite and lubricant technology, which is applied in the field of lubricants for metal hot die forging and its preparation, can solve the problems of inconvenient transportation and storage, complex manufacturing process, and large mold wear, and achieve simple preparation process, good suspension performance, and easy cleaning easy effect

Active Publication Date: 2012-07-04
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with graphite lubricants, non-graphite lubricants still have problems such as large mold wear, short life, complicated production process, poor lubrication performance and inconvenient transportation and storage. Therefore, the performance of non-graphite lubricants needs to be further improved.

Method used

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  • Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant
  • Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant
  • Non-graphite type lubricant for hot die forging of metal and preparation method of non-graphite type lubricant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In the non-graphite lubricating coating for metal hot die forging of this embodiment, the weight percentage ratio of the constituent raw materials is as follows:

[0025]

[0026] Among them, water is the carrier.

[0027] The friction coefficient of the lubricating paint at different temperatures:

[0028] Ring temperature 750℃ 800℃ 850℃ 900℃

[0029] Coefficient of friction 0.067 0.067 0.062 0.063

Embodiment 2

[0031] The non-graphite lubricating paint for metal hot die forging in this embodiment, the weight percentage ratio of the constituent raw materials is as follows:

[0032]

[0033] Among them, water is the carrier.

[0034] The friction coefficient of the lubricating paint at different temperatures:

[0035] Ring temperature 750℃ 800℃ 850℃ 900℃

[0036] Coefficient of friction 0.066 0.067 0.063 0.064

Embodiment 3

[0038] The non-graphite lubricating paint for metal hot die forging in this embodiment, the weight percentage ratio of the constituent raw materials is as follows:

[0039]

[0040]

[0041] Among them, water is the carrier.

[0042] The friction coefficient of the lubricating paint at different temperatures:

[0043] Ring temperature 750℃ 800℃ 850℃ 900℃

[0044] Coefficient of friction 0.065 0.067 0.061 0.063

[0045] In the above embodiments, water is used as the carrier, and its mass is more than 5 times the total mass of other additives. Boron nitride (BN) is an inorganic substance with a layered lattice structure. It can also consider other inorganic substances with a layered lattice structure, such as talc or mica. Generally, inorganic substances with a layered lattice structure are required The number of meshes is above 320.

[0046] The stearate in the embodiment is a typical high temperature resistant lubricant, such as sodium stearate, calcium stearate, barium stearate, and c...

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Abstract

The invention discloses a water-based non-graphite type lubricant, which is characterized by comprising the following ingredients in percentage by weight: 26%-35% of inorganic substance with layered lattice structures, 10%-15% of high-temperature-resistant lubricant, 12%-24% of suspending agent, 30%-47% of high-temperature adhesive and 1%-3% of adjuvant. The water-based non-graphite type lubricant is an environment-friendly lubricant for hot die forging, can replace a graphite type lubricant, and is especially suitable for the hot die forging of metal, in particular, for the hot die forging of large-sized aluminum pieces. The invention further discloses a preparation method of the water-based non-graphite type lubricant. The preparation method has the advantages of simple preparation process and excellent film-forming performance.

Description

Technical field [0001] The invention belongs to the technical field of plastic processing of metal materials, in particular to a lubricant for metal hot die forging and a preparation method thereof. Background technique [0002] In the hot die forging process of metal materials, the friction coefficient gradually increases with the increase of temperature when there is no lubrication. Therefore, the high temperature lubrication of the mold is very important for the smooth demolding of the forging. Nowadays, it is generally adopted by selecting a suitable lubrication Agent to improve or solve the demolding problem. Especially for the hot die forging of aluminum alloy which is prone to mucosal phenomenon, it is particularly important to choose a suitable lubricant. [0003] Domestic metal material hot die forging lubricants are mostly graphite lubricants. my country has successfully developed a variety of aqueous graphite hot forging lubricants, such as my country’s MD-2 and MD-7 se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M173/02C10M169/04B21J3/00C10N40/24
Inventor 董选普杨帆李伟华李建军段鲁良樊自田凌宏江
Owner HUAZHONG UNIV OF SCI & TECH
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