A processing method of high-performance cemented carbide new material slitting and cutting knife

A technology of cemented carbide and processing methods, applied in other manufacturing equipment/tools, engine components, mechanical equipment, etc., can solve the problem that the performance of cemented carbide slitting knives cannot be fully satisfied, the service life of the blade needs to be further improved, and the processing efficiency and low machining accuracy, to achieve the effect of ensuring compactness and uniformity, reducing pores, and fine grain size

CN105950938BActive Publication Date: 2017-11-24MAANSHAN HENGLIDA MACHINE BLADE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-11-24

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Abstract

The invention discloses a high-performance stripping and slitting knife adopting a new hard alloy material and a manufacturing method of the stripping and slitting knife and belongs to the technical field of hard alloy cutters. The high-performance stripping and slitting knife adopting the new hard alloy material is manufactured with a powder metallurgy technology, and raw materials comprise components in percentage by mass as follows: 0.40%-0.50% of CT, 80.0%-80.5% of WC, 17.0%-17.5% of Co, 1.6%-2.2% of an inhibitor and 0.05%-0.08% of stearic acid. The manufacturing method of the stripping and slitting knife comprises steps as follows: blending; wet grinding; pressing; sintering; machining. On the basis that higher hardness and higher wear resistant property of a blade are guaranteed, the stripping and slitting knife can still keep excellent impact toughness and breakage resistance and can meet the slitting requirement of various metal sheets on the stripping and slitting knife, and the service life of the blade is remarkably prolonged.
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Description

technical field

[0001] The invention belongs to the technical field of cemented carbide cutting tools, and more specifically relates to a high-performance cemented carbide new material slitting and cutting knife and a processing method thereof. Background technique

[0002] Since the new century, with the rapid development of my country's manufacturing industry, a large number of domestic CNC equipment and assembly lines have entered various fields, and a sharp contradiction soon surfaced-advanced equipment cannot be equipped with advanced domestic mechanical tools. foreign knife. Luo Baihui, secretary-general of the International Mold and Metal Plastic Industry Suppliers Association, said that high-quality cemented carbide cutting tools have become the main tools required by processing enterprises in my country, and are widely used in heavy industries such as automobile and parts production, mold manufacturing, and aerospace. field, but my country's cutting tool companies ma...

Examples

Embodiment 1

[0047] A kind of high-performance cemented carbide new material slitting and cutting knife of this embodiment, the slitting and slitting knife is made by powder metallurgy process, and each component of its raw material is composed according to the following mass percentage:

[0048]

[0049] The above-mentioned inhibitor is a multi-component compound inhibitor, which is composed of the following components in mass percentage: 0.7% VC, 0.6% Cr 3 C 2 and 0.3% TaC. Wherein, Co of the present embodiment refers to cobalt powder, VC refers to vanadium carbide, Cr 3 C 2 refers to chromium carbide, TaC refers to tantalum carbide, CT refers to catechol, and WC refers to tungsten carbide powder. In this example, according to the powder metallurgy process, ultra-fine grain hard carbide WC and bonding metal Co powder are selected, trace elements are added as inhibitors (carbides) according to conditions, and octadecanoic acid is added as activation according to the grinding mechani...

Embodiment 2

[0078] A kind of high-performance cemented carbide new material slitting and cutting knife of this embodiment, the slitting and slitting knife is made by powder metallurgy process, and each component of its raw material is composed according to the following mass percentage:

[0079]

[0080] The above-mentioned inhibitor is a multi-component compound inhibitor, which is composed of the following components in mass percentage: 0.5% VC, 0.8% Cr 3 C 2 and 0.5% TaC.

[0081] The processing method of the above-mentioned high-performance cemented carbide new material slitting and cutting knife of the present embodiment is characterized in that: the processing of the slitting and slitting knife comprises the following steps:

[0082] Step 1. Ingredients: Weigh and mix the components of the slitting knife according to the mass percentage;

[0083] Step 2, wet grinding and pressing: mix the components weighed in step 1 and put them into a wet mill for wet grinding. The wet grindi...

Embodiment 3

[0095] A kind of high-performance cemented carbide new material slitting and cutting knife of this embodiment, the slitting and slitting knife is made by powder metallurgy process, and each component of its raw material is composed according to the following mass percentage:

[0096]

[0097] The above-mentioned inhibitor is a multi-component compound inhibitor, which consists of the following components in mass percentage: 0.6% VC, 1.0% Cr 3 C 2 and 0.4% TaC.

[0098] The processing method of the above-mentioned high-performance cemented carbide new material slitting and cutting knife of the present embodiment is characterized in that: the processing of the slitting and slitting knife comprises the following steps:

[0099] Step 1. Ingredients: Weigh and mix the components of the slitting knife according to the mass percentage;

[0100] Step 2. Wet grinding and pressing: Mix the components weighed in step 1 and put them into a wet mill for wet grinding. The wet grinding me...