CN103510023A - Pre-hardened plastic die steel material - Google Patents
Pre-hardened plastic die steel material Download PDFInfo
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- CN103510023A CN103510023A CN201310423526.6A CN201310423526A CN103510023A CN 103510023 A CN103510023 A CN 103510023A CN 201310423526 A CN201310423526 A CN 201310423526A CN 103510023 A CN103510023 A CN 103510023A
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- die steel
- sealing rubber
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Abstract
The invention discloses a pre-hardened plastic die steel material. The steel material comprises the following components in percentage by mass: 0.28-0.40% of C, 0.20-0.80% of Si, 0.60-1.00% of Mn, 0.30-0.55% of Mo, 1.40-2.00% of Cr, 0.80-1.20% of Ni and the balance of Fe and inevitable impurities. The quenching and the low-temperature tempering hardening treatment are implemented for the pre-hardened plastic die steel comprising the components; the steel is preheated for 3-4 hours at 550-650 DEG C during quenching, is kept warm for at least two hours at 855-875 DEG C, and is taken out from oil for airing after being cooled to 60-80 DEG C in the oil; the hardness of the steel can achieve 60-65 HRC after being quenched; 200 DEG C of low-temperature tempering treatment can be immediately implemented to prevent cracking; and the hardness can be maintained above 55 HRC after being tempered. According to the method, the pre-hardened plastic die steel material has excellent polishing, electric corrosion, soldering and cutting performances, and has high hardness and long service life; and the steel material can be used for large long-life plastic injection moulds, such as dies of household appliances and computer shells.
Description
Technical field
The present invention relates to moulding stock field, particularly relate to a kind of pre-hard plastic sealing rubber die steel.
Background technology
Affect the factor of die life except the project organization of mould itself, another important factor is the material of mould, the pre-general hardness of hard plastic sealing rubber die steel is high, long service life, there is good processing characteristics, be widely used in industrial production, so we are more and more higher to the performance requriements of pre-hard plastic sealing rubber die steel.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of pre-hard plastic sealing rubber die steel, have polishing, galvanic corrosion, soldering and machinability good, hardness is high, long service life, can be used for large-scale long lifetime plastic-injection mould, as moulds such as family's electrical article, computer casings.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of pre-hard plastic sealing rubber die steel is provided, comprise the following ingredients that mass percent forms: C 0.28-0.40%, Si 0.20-0.80%, Mn0.60-1.00%, Mo 0.30-0.55%, Cr1.40-2.00%, Ni 0.80-1.20%, all the other content are Fe and inevitable impurity.
The pre-hard plastic sealing rubber die steel that contains said components is implemented to quench and add the processing of low-temperaturetempering stiffened: the preheating 3-4 hour at 550-650 ℃ of elder generation during quenching, then at 850-875 ℃, be incubated 2-3 hour, put into oil and be cooled to 60-80 ℃ of fuel-displaced air cooling, for preventing that cracking from should carry out low-temperaturetempering processing immediately.
In a preferred embodiment of the present invention, described die steel quenching temperature is 600 ℃, and after quenching, hardness reaches 60-65HRC.
In a preferred embodiment of the present invention, described die steel tempering temperature is 200 ℃, and after processing with low-temperaturetempering stiffened through quenching, hardness keeps 55-58HRC.
The invention has the beneficial effects as follows: the invention provides a kind of pre-hard plastic sealing rubber die steel, through hardening and temper, risk without hardening crack and heat treatment deformation, without thermal treatment expense, shorten the cycle of Mold Making, reduce the required cost of mould, good processability, hardness are high, be applicable to long lifetime plastic-injection mould, as moulds such as family's electrical article, computer casings.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
The embodiment of the present invention comprises:
A hard plastic sealing rubber die steel, comprises the following ingredients that mass percent forms: C 0.28-0.40%, Si 0.20-0.80%, Mn0.60-1.00%, Mo 0.30-0.55%, Cr1.40-2.00%, Ni 0.80-1.20%, all the other content are Fe and inevitable impurity.
The pre-hard plastic sealing rubber die steel that contains said components is implemented to quench and add the processing of low-temperaturetempering stiffened: the preheating 3-4 hour at 550-650 ℃ of elder generation during quenching, then at 850-875 ℃, be incubated 2-3 hour, put into oil and be cooled to 60-80 ℃ of fuel-displaced air cooling, for preventing that cracking from should carry out low-temperaturetempering processing immediately.
Described die steel quenching temperature is 600 ℃, and after quenching, hardness reaches 60-65HRC.
Described die steel tempering temperature is 200 ℃, and after processing with low-temperaturetempering stiffened through quenching, hardness keeps 55-58HRC.
Embodiment mono-: a kind of pre-hard plastic sealing rubber die steel, comprise the following ingredients that mass percent forms: C 0.28%, and Si 0.4%, and Mn0.60%, Mo 0.40%, Cr1.50%, Ni 1.00%, and all the other content are Fe and inevitable impurity.
The pre-hard plastic sealing rubber die steel that contains said components is implemented to quench and add low-temperaturetempering stiffened and process: first preheating 4 hours at 600 ℃ during quenching, then at 875 ℃, be incubated 3 hours, put into oil and be cooled to 80 ℃ of fuel-displaced air coolings, for preventing that cracking from should carry out immediately 200 ℃ of low-temperaturetemperings and processing.
After described die steel quenches, hardness reaches 60HRC.
Described die steel hardness after quenching and low-temperaturetempering stiffened are processed keeps 55HRC.
Embodiment bis-: a kind of pre-hard plastic sealing rubber die steel, comprise the following ingredients that mass percent forms: C 0.30%, and Si 0.40%, and Mn1.00%, Mo 0.40%, Cr1.60%, Ni 1.00%, and all the other content are Fe and inevitable impurity.
The pre-hard plastic sealing rubber die steel that contains said components is implemented to quench and add low-temperaturetempering stiffened and process: first preheating 3.5 hours at 600 ℃ during quenching, then at 860 ℃, be incubated 3 hours, put into oil and be cooled to 70 ℃ of fuel-displaced air coolings, for preventing that cracking from should carry out immediately 200 ℃ of low-temperaturetemperings and processing.
After described die steel quenches, hardness reaches 62HRC.
Described die steel hardness after quenching and low-temperaturetempering stiffened are processed keeps 56HRC.
The present invention has disclosed a kind of pre-hard plastic sealing rubber die material, through hardening and temper, risk without hardening crack and heat treatment deformation, without thermal treatment expense, shorten the cycle of Mold Making, reduce the required cost of mould, good processability, hardness are high, be applicable to long lifetime plastic-injection mould, as moulds such as family's electrical article, computer casings.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a pre-hard plastic sealing rubber die steel, it is characterized in that, described pre-hard plastic sealing rubber die steel comprises the following ingredients that mass percent forms: C 0.28-0.40%, Si 0.20-0.80%, Mn0.60-1.00%, Mo 0.30-0.55%, Cr1.40-2.00%, Ni 0.80-1.20%, all the other content are Fe and inevitable impurity.
2. the pre-hard plastic sealing rubber die steel that contains said components is implemented to quench and add the processing of low-temperaturetempering stiffened: the preheating 3-4 hour at 550-650 ℃ of elder generation during quenching, then at 850-875 ℃, be incubated 2-3 hour, put into oil and be cooled to 60-80 ℃ of fuel-displaced air cooling, for preventing that cracking from should carry out low-temperaturetempering processing immediately.
3. pre-hard plastic sealing rubber die steel according to claim 1, is characterized in that, described die steel quenching temperature is 600 ℃, and after quenching, hardness reaches 60-65HRC.
4. according to the pre-hard plastic sealing rubber die steel described in claim 1-2, it is characterized in that, described die steel tempering temperature is 200 ℃, and after processing with low-temperaturetempering stiffened through quenching, hardness keeps 55-58HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423526.6A CN103510023A (en) | 2013-09-17 | 2013-09-17 | Pre-hardened plastic die steel material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310423526.6A CN103510023A (en) | 2013-09-17 | 2013-09-17 | Pre-hardened plastic die steel material |
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| CN103510023A true CN103510023A (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310423526.6A Pending CN103510023A (en) | 2013-09-17 | 2013-09-17 | Pre-hardened plastic die steel material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151759A (en) * | 2017-06-02 | 2017-09-12 | 重庆大学 | It is a kind of to be used to preparing heavy-duty forging die has under the conditions of high temperature heavy load extraordinary cast steel and preparation method thereof |
| CN108118245A (en) * | 2017-12-25 | 2018-06-05 | 内蒙金属材料研究所 | A kind of wear resistant toothed plate new low-alloy wear-resistant steel and its heat treatment method |
| CN108193134A (en) * | 2018-01-25 | 2018-06-22 | 内蒙金属材料研究所 | A kind of coal breaker tup novel low-alloy steel and its heat treatment method |
-
2013
- 2013-09-17 CN CN201310423526.6A patent/CN103510023A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107151759A (en) * | 2017-06-02 | 2017-09-12 | 重庆大学 | It is a kind of to be used to preparing heavy-duty forging die has under the conditions of high temperature heavy load extraordinary cast steel and preparation method thereof |
| CN108118245A (en) * | 2017-12-25 | 2018-06-05 | 内蒙金属材料研究所 | A kind of wear resistant toothed plate new low-alloy wear-resistant steel and its heat treatment method |
| CN108193134A (en) * | 2018-01-25 | 2018-06-22 | 内蒙金属材料研究所 | A kind of coal breaker tup novel low-alloy steel and its heat treatment method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |
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| WD01 | Invention patent application deemed withdrawn after publication |