CN102453825A - Method for preparing cutting tool material - Google Patents
Method for preparing cutting tool material Download PDFInfo
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- CN102453825A CN102453825A CN2010105229930A CN201010522993A CN102453825A CN 102453825 A CN102453825 A CN 102453825A CN 2010105229930 A CN2010105229930 A CN 2010105229930A CN 201010522993 A CN201010522993 A CN 201010522993A CN 102453825 A CN102453825 A CN 102453825A
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Abstract
The invention provides a method for preparing a cutting tool material. The method comprises the following steps of: batching 6 to 8 weight percent of Mo powder, 6 to 8 weight percent of W powder, 1.8 to 2 weight percent of C powder, 0.5 to 1 weight percent of P powder and the balance of Fe powder, wherein the powder has the particle size of 100 to 200 meshes; adding 0.1 to 1.0 weight percent of lubricant, and performing ball-mill mixing for 0.5 to 2 hours; and pressing, presintering, re-pressing, re-sintering, performing heat treatment and the like. The cutting tool material prepared by the method has an extremely high physical property, the rigidity (HRC) of 58 to 62, the bending strength of 920 to 1,050MPa and the impact toughness of 6.1 to 7.2J.cm<-2>.
Description
Technical field
The present invention relates to a kind of preparation method of cutter material.
Background technology
Its material not only needs high intensity and toughness in the use of cutting tool, also need under the high temperature more than the 800K, keep high hardness.Existing cutting tool adopts carbide material or rapid steel to make usually.Carbide material exists significant disadvantages, promptly is difficult to be processed into complicated cutting surface, and in working angles, collapses cutter easily because toughness is lower.Rapid steel has good toughness, but does not have the hot hardness and the wear resistance of carbide material.
Summary of the invention
The purpose of this invention is to provide a kind of existing excellent toughness and intensity, the preparation method of the cutter material of good hot hardness and wear resistance is arranged again.
In order to achieve the above object, the technical scheme that the present invention adopted may further comprise the steps:
G. be 6～8% Mo powder, 6～8% W powder, 1.8～2% C powder, 0.5～1% P powder and the Fe powder batching of surplus with weight percent; Powder size is 100～200 orders; Add weight percent and be 0.1～1.0% lubricant and carry out ball mill mixing again, mixing time is 0.5～2 hour;
H. under the pressure of 500～600Mpa, suppress;
I. be 800～900 ℃ of pre-burnings in temperature, soaking time 0.5～1.5 hour;
J. under the pressure of 900～1000Mpa, carry out multiple pressure;
K. at 1200～1300 ℃ of following resinterings, soaking time 1.5～2.5 hours;
L. be 950～1100 ℃ in temperature and quench soaking time 20～35 minutes down; In temperature is 450～600 ℃ of following tempering, soaking time 40～80 minutes.
As improvement of the present invention, said lubricant is a Zinic stearas.
As further improvement of the present invention, said pre-burning and resintering are in vacuum degreasing sintered all-in-one oven, to carry out.
Adopt the preparation method of the cutter material of method for preparing to have good physicals, hardness (HRC) reaches 58～62, and bending strength reaches 920～1050MPa, and impelling strength reaches 6.1～7.2Jcm
-2
Embodiment
Embodiment one:
A. be 6% Mo powder, 7.8% W powder, 1.8% C powder, 0.5% P powder and the Fe powder batching of surplus with weight percent, powder size is 100 orders, adds weight percent and is 0.1% lubricant and carry out ball mill mixing again, and mixing time is 0.5 hour;
B. under the pressure of 500Mpa, suppress;
C. be 800 ℃ of following pre-burnings in temperature, soaking time 0.5 hour;
D. under the pressure of 900Mpa, carry out multiple pressure;
E. at 1200 ℃ of following resinterings, soaking time 1.5 hours;
F. be 950 ℃ in temperature and quench soaking time 20 minutes down; In temperature is 600 ℃ of following tempering, soaking time 40 minutes.
The preparation method of the cutter material of preparation has good physicals, and hardness (HRC) reaches 58, and bending strength reaches 920MPa, and impelling strength reaches 6.1Jcm
-2
Embodiment two:
A. be 8% Mo powder, 6% W powder, 2% C powder, 1% P powder and the Fe powder batching of surplus with weight percent, powder size is 200 orders, adds weight percent and is 1.0% lubricant and carry out ball mill mixing again, and mixing time is 1.5 hours;
B. under the pressure of 600Mpa, suppress;
C. be 900 ℃ of following pre-burnings in temperature, soaking time 1.0 hours;
D. under the pressure of 950Mpa, carry out multiple pressure;
E. at 1280 ℃ of following resinterings, soaking time 2.5 hours;
F. be 1100 ℃ in temperature and quench soaking time 35 minutes down; In temperature is 450 ℃ of following tempering, soaking time 80 minutes.
The preparation method of the cutter material of preparation has good physicals, and hardness (HRC) reaches 60, and bending strength reaches 1000MPa, and impelling strength reaches 7Jcm
-2
Embodiment three:
A. be 6.8% Mo powder, 8% W powder, 1.8% C powder, 0.75% P powder and the Fe powder batching of surplus with weight percent; Powder size is 150 orders; Add weight percent and be 0.8% Zinic stearas and carry out ball mill mixing again, mixing time is 2 hours;
B. under the pressure of 570Mpa, suppress;
C. be 840 ℃ of following pre-burnings in temperature, soaking time 0.9 hour;
D. under the pressure of 1000Mpa, carry out multiple pressure;
E. at 1300 ℃ of following resinterings, soaking time 2.0 hours;
F. temperature is 1000 ℃ of quenchings down, soaking time 28 minutes; In temperature is 550 ℃ of following tempering, soaking time 60 minutes.
The preparation method of the cutter material of preparation has good physicals, and hardness (HRC) reaches 62, and bending strength reaches 1050MPa, and impelling strength reaches 7.2Jcm
-2
Claims (3)
1. the preparation method of a cutter material is characterized in that, may further comprise the steps:
A. be 6～8% Mo powder, 6～8% W powder, 1.8～2% C powder, 0.5～1% P powder and the Fe powder batching of surplus with weight percent; Powder size is 100～200 orders; Add weight percent and be 0.1～1.0% lubricant and carry out ball mill mixing again, mixing time is 0.5～2 hour;
B. under the pressure of 500～600Mpa, suppress;
C. be 800～900 ℃ of pre-burnings in temperature, soaking time 0.5～1.5 hour;
D. under the pressure of 900～1000Mpa, carry out multiple pressure;
E. at 1200～1300 ℃ of following resinterings, soaking time 1.5～2.5 hours;
F. be 950～1100 ℃ in temperature and quench soaking time 20～35 minutes down; In temperature is 450～600 ℃ of following tempering, soaking time 40～80 minutes.
2. according to the preparation method of the cutter material of claim 1, it is characterized in that said lubricant is a Zinic stearas.
3. according to the preparation method of the cutter material of claim 1 or 2, it is characterized in that said pre-burning and resintering are in vacuum degreasing sintered all-in-one oven, to carry out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105229930A CN102453825A (en) | 2010-10-28 | 2010-10-28 | Method for preparing cutting tool material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105229930A CN102453825A (en) | 2010-10-28 | 2010-10-28 | Method for preparing cutting tool material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102453825A true CN102453825A (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105229930A Pending CN102453825A (en) | 2010-10-28 | 2010-10-28 | Method for preparing cutting tool material |
Country Status (1)
| Country | Link |
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| CN (1) | CN102453825A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522307A (en) * | 2013-06-14 | 2014-01-22 | 连新兰 | Spring steel kitchen knife and manufacturing method thereof |
| CN104388819A (en) * | 2014-10-31 | 2015-03-04 | 苏州莱特复合材料有限公司 | Powdered metallurgic material for cutting tools and preparation method thereof |
| CN108405849A (en) * | 2018-04-03 | 2018-08-17 | 胡佳佳 | A kind of cutting tool powdered metallurgical material and preparation method thereof |
-
2010
- 2010-10-28 CN CN2010105229930A patent/CN102453825A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103522307A (en) * | 2013-06-14 | 2014-01-22 | 连新兰 | Spring steel kitchen knife and manufacturing method thereof |
| CN104388819A (en) * | 2014-10-31 | 2015-03-04 | 苏州莱特复合材料有限公司 | Powdered metallurgic material for cutting tools and preparation method thereof |
| CN104388819B (en) * | 2014-10-31 | 2016-06-29 | 新昌县大市聚镇海房机械厂 | A kind of powdered metallurgical material for cutting tool and preparation method thereof |
| CN108405849A (en) * | 2018-04-03 | 2018-08-17 | 胡佳佳 | A kind of cutting tool powdered metallurgical material and preparation method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |