CN101962739A - Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof - Google Patents
Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof Download PDFInfo
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- CN101962739A CN101962739A CN 201010543967 CN201010543967A CN101962739A CN 101962739 A CN101962739 A CN 101962739A CN 201010543967 CN201010543967 CN 201010543967 CN 201010543967 A CN201010543967 A CN 201010543967A CN 101962739 A CN101962739 A CN 101962739A
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Abstract
The invention relates to a cast steel material suitable for a high-pressure resistant cylinder body, which comprises the following chemical compositions in percentage by weight: less than or equal to 0.40 percent of C, less than or equal to 1.60 percent of Mn, less than or equal to 0.90 percent of Si, less than or equal to 0.030 percent of P, less than or equal to 0.030 percent of S, less than or equal to 0.80 percent of Mo, less than or equal to 1.20 percent of Ni, less than or equal to 1.20 percent of Cr and the balance of Fe. The chemical compositions of the cast steel material are rationally designed, alloy elements are selectively added and a thermal treatment process comprising normalization and tempering is adopted, so the problem that a proper thermal treatment furnace cannot be found for hardening and tempering treatment due to the relatively larger size of a casting suitable for the high-pressure resistant cylinder body is solved, and simultaneously, the cracks of the casting suitable for the high-pressure resistant cylinder body are reduced and the quality of the product is ensured in quenching.
Description
Technical field
The invention belongs to new material technology field, relate to the cast steel and the manufacture method thereof of the suitable high pressure resistant cylinder body of a kind of yield strength height and good mechanical property.
Background technology
Cylinder formula hinge beam is the main part of the force that produces man-made diamond equipment, and it need bear the pressure of 55Mpa, and its original material is ZG35CrMo, user mode is modified, the hardness of foundry goods is HB260-290, when pressurize is tested, need bear test pressure 63Mpa; Consider simultaneously cylinder formula hinge beam complex-shaped, size is thick, its maximum ga(u)ge is of a size of 300mm, its overall dimensions are big, as overall dimensions 2450 mm * 2450 mm * 1475 mm, the maximum ga(u)ge of foundry goods reaches 300mm; Weight is big, and its blank weight reaches 17800kg, if adopt the thermal treatment process of modified (quenching+high tempering) when thermal treatment, then the hardening capacity of foundry goods not necessarily meets the demands when quenching, and is easy to generate crackle when quenching, and finally causes foundry goods to be scrapped.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides a kind of cast steel and manufacture method thereof of bearing the suitable high pressure resistant cylinder body that operating pressure reaches 70Mpa and good mechanical property.
The present invention solves the technological method that its technical problem adopts: a kind of cast steel that is fit to high pressure resistant cylinder body, and its chemical ingredients and weight percent proportioning thereof are respectively: C≤0.40,
Mn≤ 1.60,
Si≤ 0.90,
P≤ 0.030,
S≤ 0.030,
Mo≤ 0.80,
Ni≤ 1.20,
Cr≤ 1.20, all the other are Fe.
The described manufacture method that is fit to the cast steel of high pressure resistant cylinder body is: the cast steel blank that will adopt the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 900 ℃ of-950 ℃ of anneal, again through 850 ℃ of-900 ℃ of normalizing treatment,, make the cast steel finished product of cylinder formula hinge beam after 550 ℃ of-650 ℃ of high temperings are handled.
With adopting the cast steel blank of the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof,,,, make the cast steel finished product of cylinder formula hinge beam after 630 ℃ of high temperings are handled again through 880 ℃ of normalizing treatment earlier through 930 ℃ of anneal.
The invention has the beneficial effects as follows: by appropriate design chemical ingredients, add alloying element selectively, adopt normalizing to add the tempered thermal treatment process, avoided because suitable high pressure resistant cylinder block casting size is bigger, and can't find the proper heat treatment stove to carry out modifier treatment, when quenching, reduce the crackle that is fit to high pressure resistant cylinder block casting simultaneously, guaranteed quality product.
Embodiment
The present invention is further described below in conjunction with embodiment.
A kind of cast steel that is fit to high pressure resistant cylinder body, its chemical ingredients and weight percent proportioning thereof are respectively: C≤0.40, Mn≤1.60, Si≤0.90, P≤0.030, S≤0.030, Mo≤0.80, Ni≤1.20, Cr≤1.20, all the other are Fe.
The described manufacture method that is fit to the cast steel of high pressure resistant cylinder body is: the cast steel blank that will adopt the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 900 ℃ of-950 ℃ of anneal, again through 850 ℃ of-900 ℃ of normalizing treatment, after 550 ℃ of-650 ℃ of high temperings, make the cast steel finished product of cylinder formula hinge beam.
Example 1: the cast steel blank that adopts the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, through 930 ℃ of anneal, make the cast steel finished product of cylinder formula hinge beam, this end properties index is that tensile strength sigma b is 980 Mpa, yield strength σ s is 713Mpa, unit elongation δ is 5.2%, and relative reduction in area φ is 5.8%, hardness HB306-313.
Example 2: the cast steel blank that adopts the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 930 ℃ of anneal, again through 880 ℃ of normalizing treatment, make the cast steel finished product of cylinder formula hinge beam, this end properties index is that tensile strength sigma b is 1317 Mpa, and yield strength σ s is 948Mpa, and unit elongation δ is 4.0%, relative reduction in area φ is 7.8%, hardness HB409-420.
Example 3: the cast steel blank that adopts the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 930 ℃ of anneal, again through 880 ℃ of normalizing treatment, after 580 ℃ of high temperings are handled, make the cast steel finished product of cylinder formula hinge beam, this end properties index is that tensile strength sigma b is 967 Mpa, yield strength σ s is 786Mpa, unit elongation δ is 15.2%, and relative reduction in area φ is 43.4%, hardness HB298-311.
Example 4: the cast steel blank that adopts the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 930 ℃ of anneal, again through 880 ℃ of normalizing treatment, after 630 ℃ of high temperings are handled, make the cast steel finished product of cylinder formula hinge beam, this end properties index is that tensile strength sigma b is 872 Mpa, yield strength σ s is 802Mpa, unit elongation δ is 16.4%, and relative reduction in area φ is 45.2%, hardness HB270-281.
The present invention carries out appropriate design by the chemical ingredients to the cast steel that is fit to high pressure resistant cylinder body, add alloying element selectively, for example: Cr, Ni, Mo etc., adopt normalizing to add the tempered thermal treatment process, avoided because suitable high pressure resistant cylinder block casting size is bigger, and can't find the proper heat treatment stove to carry out modifier treatment, simultaneously when quenching, be fit to high pressure resistant cylinder block casting and reduced crackle, guarantee quality product, in the test run process of more than ten years, found no abnormal conditions.
Claims (3)
1. cast steel that is fit to high pressure resistant cylinder body, it is characterized in that: its chemical ingredients and weight percent proportioning thereof are respectively: C≤0.40,
Mn≤ 1.60,
Si≤ 0.90,
P≤ 0.030,
S≤ 0.030,
Mo≤ 0.80,
Ni≤ 1.20,
Cr≤ 1.20, all the other are Fe.
2. preparation is fit to the method for the cast steel of high pressure resistant cylinder body according to claim 1, it is characterized in that: the cast steel blank that will adopt the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 900 ℃ of-950 ℃ of anneal, again through 850 ℃ of-900 ℃ of normalizing treatment,, make the cast steel finished product of cylinder formula hinge beam after 550 ℃ of-650 ℃ of high temperings are handled.
3. as being fit to the preparation method of the cast steel of high pressure resistant cylinder body as described in the claim 2, it is characterized in that: the cast steel blank that will adopt the cylinder formula hinge beam of above-mentioned chemical ingredients and weight percent proportioning thereof, earlier through 930 ℃ of anneal, again through 880 ℃ of normalizing treatment,, make the cast steel finished product of cylinder formula hinge beam after 630 ℃ of high temperings are handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010543967 CN101962739A (en) | 2010-11-15 | 2010-11-15 | Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010543967 CN101962739A (en) | 2010-11-15 | 2010-11-15 | Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof |
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| CN101962739A true CN101962739A (en) | 2011-02-02 |
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| CN 201010543967 Pending CN101962739A (en) | 2010-11-15 | 2010-11-15 | Cast steel material suitable for high-pressure resistant cylinder body and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580619A (en) * | 2012-03-06 | 2012-07-18 | 河南飞孟金刚石工业有限公司 | Hinge sleeve for cubic presses and manufacturing method thereof |
| CN106048415A (en) * | 2016-07-06 | 2016-10-26 | 山东钢铁股份有限公司 | Ni micro-alloyed steel for petroleum drill collar and preparation method thereof |
| CN106756519A (en) * | 2017-02-28 | 2017-05-31 | 洛阳启明超硬材料有限公司 | A kind of alloy steel products for being applied to hinge beam |
| CN107541660A (en) * | 2017-09-27 | 2018-01-05 | 马鞍山平文锻造有限公司 | A kind of high-performance disintegrating apparatus rear-bank rotor housing and its processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033845A (en) * | 1987-12-31 | 1989-07-12 | 上海工程技术大学科技开发公司 | A kind of high-tenacity low-carbon microalloyed cast steel |
| JPH08333657A (en) * | 1995-04-03 | 1996-12-17 | Japan Steel Works Ltd:The | Heat resistant cast steel and its production |
| CN1560311A (en) * | 2004-02-27 | 2005-01-05 | 天津工程机械研究院 | Wear-resisting cast steel and preparation method thereof |
-
2010
- 2010-11-15 CN CN 201010543967 patent/CN101962739A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033845A (en) * | 1987-12-31 | 1989-07-12 | 上海工程技术大学科技开发公司 | A kind of high-tenacity low-carbon microalloyed cast steel |
| JPH08333657A (en) * | 1995-04-03 | 1996-12-17 | Japan Steel Works Ltd:The | Heat resistant cast steel and its production |
| CN1560311A (en) * | 2004-02-27 | 2005-01-05 | 天津工程机械研究院 | Wear-resisting cast steel and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580619A (en) * | 2012-03-06 | 2012-07-18 | 河南飞孟金刚石工业有限公司 | Hinge sleeve for cubic presses and manufacturing method thereof |
| CN102580619B (en) * | 2012-03-06 | 2013-12-18 | 河南飞孟金刚石工业有限公司 | Hinge sleeve for cubic presses and manufacturing method thereof |
| CN106048415A (en) * | 2016-07-06 | 2016-10-26 | 山东钢铁股份有限公司 | Ni micro-alloyed steel for petroleum drill collar and preparation method thereof |
| CN106048415B (en) * | 2016-07-06 | 2018-05-22 | 山东钢铁股份有限公司 | A kind of Ni microalloyings stone oil drill collar steel and preparation method thereof |
| CN106756519A (en) * | 2017-02-28 | 2017-05-31 | 洛阳启明超硬材料有限公司 | A kind of alloy steel products for being applied to hinge beam |
| CN107541660A (en) * | 2017-09-27 | 2018-01-05 | 马鞍山平文锻造有限公司 | A kind of high-performance disintegrating apparatus rear-bank rotor housing and its processing method |
| CN107541660B (en) * | 2017-09-27 | 2019-01-25 | 马鞍山平文锻造有限公司 | A kind of high-performance crushing plant rear-bank rotor housing and its processing method |
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Application publication date: 20110202 |