Quenching process applied to high-hardness engineering machinery

A technology of engineering machinery and high hardness, which is applied in the direction of quenching devices, manufacturing tools, metal processing equipment, etc., can solve the problems of bucket tooth casting, troublesome operation, etc., and achieve the goals of improving service life, convenient application of release fluid, and improving efficiency Effect

Active Publication Date: 2016-10-26
宁波吉威熔模铸造有限公司
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Problems solved by technology

Therefore, the material of the bucket teeth directly affects the service life of the bucket teeth, and from the analysis of the failure causes of the bucket teeth, the material of each position of the bucket teeth is best inconsistent, but this brings a technical problem to the casting of the bucket teeth
In addition, the product needs to apply release powder to the cavity before die-casting, which is very troublesome to operate
[0005] In addition, when the bucket teeth are quenched, it is necessary to manually control the movement of the conveying rollers, which is very troublesome to operate

Method used

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  • Quenching process applied to high-hardness engineering machinery

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Embodiment

[0028] A quenching process applied to high-hardness construction machinery for making bucket teeth, specifically through the following steps:

[0029] a. Sand box device: the sand box device includes a push rod 3, a rotatable upper sand box 11 and a centrifugally rotatable lower sand box 12, and the upper sand box 11 is provided with a sprue 13 and a demoulding mechanism 14. The lower sand box 12 is provided with a bucket tooth cavity 15, and an electric heating tube 1 is arranged around the bucket tooth cavity 15; the upper sand box 11 is rotated so that the sprue 13 or the demoulding mechanism 14 and The bucket tooth cavity 15 of the lower flask 12 is mated and connected; the ejector rod 3 traverses through the lower flask 12 to the inside of the bucket tooth cavity 15, and is used for casting a connecting hole for clamping the bucket tooth pin ( figure 1 ).

[0030] The demoulding mechanism 14 includes a push rod 3, a liquid inlet channel 16 and a box 17 for storing the de...

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Abstract

The invention discloses a quenching process applied to high-hardness engineering machinery and belongs to the technical field of machining methods for excavator parts. The quenching process comprises the following steps: (1) manufacturing of a sand box which comprises an upper sand box body and a lower sand box body: forming a bucket tooth cavity in the lower sand box body, arranging electric heating tubes around the bucket tooth cavity, and arranging a mold-releasing liquid guiding mechanism with an automatic daubing function; (2) smelting; (3) casting; and (4) forming: ensuring that a rotating table stop rotating after condensation forming, opening the sand box and taking out a mold. By adoption of the quenching process disclosed by the invention, the technical problem that the top and the root of a conventional bucket tooth are made of a uniform material, and thus the conventional bucket tooth is short in service life can be solved; the quenching process is widely applied to the production of excavator bucket teeth; and meanwhile, the mold-releasing liquid is more convenient to daub, and the quenching is further facilitated.

Description

technical field [0001] The invention relates to a heat treatment process for engineering machinery, in particular to a quenching process for high-hardness engineering machinery. Background technique [0002] The bucket tooth is an important part of the excavator, and it is also a vulnerable part. It is a combined bucket tooth composed of a tooth seat and a tooth tip, and the two are connected by a pin. Since the tooth tip is the tooth tip that fails due to wear and tear of the bucket teeth, it is only necessary to replace the tooth tip. [0003] At present, most of the bucket teeth are formed in batches through the casting process. After the bucket tooth blanks are cast, diathermy forging is the most important node in the bucket tooth forming process. The diathermy forging can be completed by selecting intermediate frequency induction heating equipment (diathermy is for the The metal is heated from the outside to the inside as a whole, which is the heat treatment before met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16C21D9/00C21D1/62C21C7/06B22C21/02B22C21/12C22C38/02C22C38/04C22C38/18C22C38/12
CPCB22C21/02B22C21/12B22D19/16C21C7/06C21D1/62C21D9/0062C21D9/0068C22C38/02C22C38/04C22C38/12C22C38/18
Inventor 罗绍康
Owner 宁波吉威熔模铸造有限公司
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