CN101580919B - Medium-carbon cast steel shot or medium-carbon cast steel grit and preparation method thereof - Google Patents
Medium-carbon cast steel shot or medium-carbon cast steel grit and preparation method thereof Download PDFInfo
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- CN101580919B CN101580919B CN2009100160724A CN200910016072A CN101580919B CN 101580919 B CN101580919 B CN 101580919B CN 2009100160724 A CN2009100160724 A CN 2009100160724A CN 200910016072 A CN200910016072 A CN 200910016072A CN 101580919 B CN101580919 B CN 101580919B
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- cast steel
- carbon cast
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- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 128
- 229920002165 CarbonCast Polymers 0.000 title claims abstract description 118
- 238000002360 preparation method Methods 0.000 title claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000004576 sand Substances 0.000 claims description 51
- 239000011265 semifinished product Substances 0.000 claims description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 238000010791 quenching Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 230000000171 quenching effect Effects 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 3
- 238000010891 electric arc Methods 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 5
- 229910000734 martensite Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 238000005480 shot peening Methods 0.000 description 2
- 206010011376 Crepitations Diseases 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 229910001563 bainite Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Abstract
The present invention discloses a medium-carbon cast steel shot or medium-carbon cast steel grit which consists of the following components: 0.35 to 0.65 weight percent of C, 0.35 to 1.50 weight percent of Mn, 0 to 0.30 weight percent of Si, 0 to 0.005 weight percent of S, 0 to 0.005 weight percent of P, and the balance of Fe. The medium-carbon cast steel shot or medium-carbon cast steel grit of the invention has the advantages of high strength, excellent toughness, impact resistance, abrasion resistance and long service life.
Description
Technical field
The present invention relates to a kind of cast steel ball or cast steel sand, be particularly related to a kind of middle carbon cast steel ball or middle carbon cast steel sand and preparation method, be applicable to shotblasting, shot-peening, abrasive jet cleaning and the reinforcement of steel, foundry goods, forging, heat treatment part, belong to the metal abrasives technical field.
Background technology
Domestic and international at present cast steel ball or the cast steel sand product that uses, be divided into height, low-carbon (LC) two classes, mainly there is following problem: be to satisfy GB/T18838.3-2008 high carbon cast steel ball and sand on the one hand, SFSA20-66 cast steel abrasive material, SAE J827-1996 cast steel ball, SAE J1993-1996 high carbon cast steel sand, the YB/T5149-1993 cast steel ball, YB/T5150-1993 cast steel sand, ISO11124-3-1993 high carbon cast steel ball and sand, JIS G5903-1975 cast steel ball and sand, the high carbon cast steel ball of DIN 8201-2-1985 cast steel ball and sand standard, high carbon cast steel sand, main component is C:0.80～1.20wt%, carbon amount height, belong to the hypereutectoid steel composition, after atomizing is frozen into ball, there is serious component segregation phenomenon in the as-cast structure, form high-carbon lamellar martensite tissue behind the cool to room temperature, the high carbon cast steel ball produces a large amount of crackles, though after heating quenching and tempering once more, its component segregation also should not be eliminated, and face crack continues expansion, fragility is still bigger, in shotblasting, sandblast, easily broken in blast cleaning and the strengthening process, losing quantity is big; Satisfy on the other hand SAE J2175-1991 low-carbon cast steel ball, GB/T18838.4-2008 low-carbon cast steel ball standard the low-carbon cast steel ball, main component C:0.08～0.20%, carbon content is low, after as cast condition is frozen into ball, be organized as low-carbon martensite+bainite line and staff control, hardness≤HRC50, hardness is lower, and can't fragmentation make low-carbon cast steel sand, can't adapt to shotblasting, sandblast, blast cleaning and the reinforcement of high rigidity workpiece.
Summary of the invention
The objective of the invention is to overcome the prior art deficiency and provide a kind of middle carbon cast steel ball or middle carbon cast steel sand, carbon cast steel ball or middle carbon cast steel sand intensity height, good toughness, shock-resistant, wear-resistant, long service life in this kind.
Another object of the present invention provides the preparation method of carbon cast steel ball in this kind or middle carbon cast steel sand.
Carbon cast steel ball or middle carbon cast steel sand in a kind of, it is characterized in that, middle carbon cast steel ball or middle carbon cast steel sand consist of C:0.35～0.65wt%, Mn:0.35～1.50wt%, Si:0～0.30wt%, S:0～0.05wt%, P:0～0.05wt%, surplus is Fe.
The preparation method of described a kind of middle carbon cast steel ball or middle carbon cast steel sand is characterized in that, may further comprise the steps:
1) with the raw material weighing batching, and melting is a molten steel in medium-frequency induction furnace or electric arc furnaces;
2) molten steel that step 1) is obtained is poured tundish into, adopts aluminium deoxidation;
3) adopting centrifugal atomizing or water slug atomization, with step 2) molten steel after the deoxidation becomes droplet, and drop becomes sphere under the capillary effect of molten steel, fall into and be cooled to the ball tank water, is frozen into carbon cast steel ball in the semi-finished product as cast condition;
4) from be cooled to the ball pond, pull carbon cast steel ball in the semi-finished product as cast condition out, oven dry;
5) carbon cast steel ball in the semi-finished product as cast condition of oven dry is heated down at 820 ℃～860 ℃, be incubated after 30～40 minutes, in water, cool off, carry out Quenching Treatment, make carbon cast steel ball in the semi-finished product quenching, the carbon cast steel ball is incubated 30～60 minutes in then semi-finished product being quenched under 150 ℃～550 ℃ temperature, carries out temper, perhaps with the oven dry semi-finished product as cast condition in the carbon cast steel ball directly under 150 ℃～550 ℃ temperature, be incubated 30～60 minutes, carry out temper, carbon cast steel ball in making;
With carbon cast steel ball during carbon cast steel ball or semi-finished product quench in the semi-finished product as cast condition of the oven dry of granularity 〉=2.0mm, through the oppositely rolling roller crusher fragmentation, make carbon cast steel sand in carbon cast steel sand in the semi-finished product as cast condition, the semi-finished product quenching respectively, carbon cast steel sand was under 150 ℃～500 ℃ temperature during carbon cast steel sand or semi-finished product in the semi-finished product as cast condition were quenched, be incubated 30～60 minutes, carry out temper, carbon cast steel sand in making.
Described a kind of in the preparation method of carbon cast steel ball or middle carbon cast steel sand, step 2) described in the aluminium consumption be the 0.015wt% of molten steel quality.
The preparation method of described a kind of middle carbon cast steel ball or middle carbon cast steel sand, the oven dry described in the step 4) is for controlling water content less than 0.2wt%.
The preparation method of described a kind of middle carbon cast steel ball or middle carbon cast steel sand, the Quenching Treatment cooling medium described in the step 5) is the circulating water below 50 ℃, and described middle carbon cast steel ball granularity is 0.1～4.0mm, and described middle carbon cast steel fineness of sand is 0.1～2.4mm.
A kind of middle carbon cast steel ball of the present invention or middle carbon cast steel sand, can improve toughness, improve resistance to impact and mar proof, be equal under the hardness and prolong 10～30% service life than existing high carbon cast steel ball product, press SAE J445-1996 metal ball grittiness can test in ERVIN Irving life-span 100% method of substitution of regulation measure, can reach 3000 times～3600 times; Improve HRC10-15 than existing low-carbon cast steel ball product hardness, can improve cleaning speed 10～20%.Be specially adapted to shotblasting, shot-peening, abrasive jet cleaning and the reinforcement of steel, foundry goods, forging, heat treatment part.
The specific embodiment
The present invention is further described below in conjunction with embodiment.
Embodiment 1
Carbon cast steel ball or middle carbon cast steel sand in a kind of consist of C:0.48wt%, Mn:0.36wt%, Si:0.15wt%, S:0.021wt%, P:0.020wt%, surplus is Fe.
The preparation method:
1) with raw material weighing batching and in medium-frequency induction furnace melting be molten steel;
2) molten steel that step 1) is obtained is poured tundish into, adopts the aluminium deoxidation that inserts 0.015wt%;
3) adopting the centrifugal atomizing method to make step 2) molten steel after the deoxidation becomes droplet, and drop becomes sphere under the capillary effect of molten steel, fall into and be cooled to the ball tank water, is frozen into carbon cast steel ball in the semi-finished product as cast condition;
4) pull carbon cast steel ball in the semi-finished product as cast condition out from be cooled to the ball pond, through the oven dry of rotary furnace drying stove, the control water content is less than 0.2wt%;
5) with the oven dry semi-finished product as cast condition in the carbon cast steel ball under 850 ℃, behind the heat tracing 30 minutes, in water, cool off, carry out Quenching Treatment, make carbon cast steel ball in the semi-finished product quenching, the carbon cast steel ball is incubated 50 minutes in then semi-finished product being quenched under 150 ℃, and temper makes carbon cast steel ball in the tempered martensite that granularity is 0.1～4.0mm (HRC60);
Carbon cast steel ball in the semi-finished product quenching of granularity 〉=2.0mm is made carbon cast steel sand in the semi-finished product quenching through the oppositely rolling roller crusher fragmentation, carbon cast steel sand was under 150 ℃ during semi-finished product were quenched, be incubated 50 minutes, temper makes carbon cast steel sand in the tempered martensite that granularity is 0.1～2.4mm (HRC60).
Embodiment 2
Carbon cast steel ball or middle carbon cast steel sand in a kind of consist of C:0.63wt%, Mn:1.10wt%, Si:0.20wt%, S:0.04wt%, P:0.045wt%, surplus is Fe.
The preparation method:
1) with raw material weighing batching and in electric arc furnaces melting be molten steel;
2) molten steel that step 1) is obtained is poured tundish into, adopts the aluminium deoxidation that inserts 0.015wt%;
3) adopting the centrifugal atomizing method to make step 2) molten steel after the deoxidation becomes droplet, and drop becomes sphere under the capillary effect of molten steel, fall into and be cooled to the ball tank water, is frozen into carbon cast steel ball in the semi-finished product as cast condition;
4) pull carbon cast steel ball in the semi-finished product as cast condition out from be cooled to the ball pond, through the oven dry of rotary furnace drying stove, the control water content is less than 0.2wt%;
5) carbon cast steel ball in the semi-finished product as cast condition of oven dry be incubated 35 minutes directly under 350 ℃, temper makes the middle carbon cast steel ball of secondary troostite tissue (HRC51);
Carbon cast steel ball in the semi-finished product as cast condition of the oven dry of granularity 〉=2.0mm is made carbon cast steel sand in the semi-finished product as cast condition through the oppositely rolling roller crusher fragmentation, with carbon cast steel sand in the semi-finished product as cast condition under 350 ℃, be incubated 35 minutes, temper makes carbon cast steel sand in the secondary troostite tissue (HRC51).
Embodiment 3
Carbon cast steel ball or middle carbon cast steel sand in a kind of consist of C:0.36wt%, Mn:0.60wt%, Si:0.30wt%, S:0.002wt%, P:0.005wt%, surplus is Fe.
The preparation method:
1) with raw material weighing batching and in medium-frequency induction furnace melting be molten steel;
2) molten steel that step 1) is obtained is poured tundish into, adopts the aluminium deoxidation that inserts 0.015wt%;
3) adopting the water slug atomization to make step 2) molten steel after the deoxidation becomes droplet, and drop becomes sphere under the capillary effect of molten steel, fall into and be cooled to the ball tank water, is frozen into carbon cast steel ball in the semi-finished product as cast condition;
4) pull carbon cast steel ball in the semi-finished product as cast condition out from be cooled to the ball pond, through the oven dry of rotary furnace drying stove, the control water content is less than 0.2wt%;
5) with the oven dry semi-finished product as cast condition in the carbon cast steel ball under 820 ℃, behind the heat tracing 40 minutes, in water, cool off, carry out Quenching Treatment,, make carbon cast steel ball in the semi-finished product quenching, the carbon cast steel ball is under 450 ℃ in then semi-finished product being quenched, be incubated 40 minutes, temper makes carbon cast steel ball in the tempered sorbite tissue (HRC43);
Carbon cast steel ball in the semi-finished product quenching of granularity 〉=2.0mm is made carbon cast steel sand in the semi-finished product quenching through the double-roll crusher fragmentation, carbon cast steel sand was under 450 ℃ during semi-finished product were quenched, be incubated 40 minutes, temper makes carbon cast steel sand in the tempered sorbite tissue (HRC43).
Claims (4)
1. carbon cast steel ball or middle carbon cast steel sand in one kind, it is characterized in that, middle carbon cast steel ball or middle carbon cast steel sand consist of C:0.36～0.48wt%, Mn:0.35～1.50wt%, Si:0～0.30wt%, S:0～0.05wt%, P:0～0.05wt%, surplus is Fe; Its preparation may further comprise the steps:
1) with the raw material weighing batching, and melting is a molten steel in medium-frequency induction furnace or electric arc furnaces;
2) molten steel that step 1) is obtained is poured tundish into, adopts aluminium deoxidation;
3) adopting centrifugal atomizing or water slug atomization, with step 2) molten steel after the deoxidation becomes droplet, and drop becomes sphere under the capillary effect of molten steel, fall into and be cooled to the ball tank water, is frozen into carbon cast steel ball in the semi-finished product as cast condition;
4) from be cooled to the ball pond, pull carbon cast steel ball in the semi-finished product as cast condition out, oven dry;
5) carbon cast steel ball in the semi-finished product as cast condition of oven dry is heated down at 820 ℃～860 ℃, be incubated after 30～40 minutes, in water, cool off, carry out Quenching Treatment, make carbon cast steel ball in the semi-finished product quenching, the carbon cast steel ball is incubated 30～60 minutes in then semi-finished product being quenched under 150 ℃～550 ℃ temperature, carries out temper, perhaps with the oven dry semi-finished product as cast condition in the carbon cast steel ball directly under 150 ℃～550 ℃ temperature, be incubated 30～60 minutes, carry out temper, carbon cast steel ball in making;
With carbon cast steel ball during carbon cast steel ball or semi-finished product quench in the semi-finished product as cast condition of the oven dry of granularity 〉=2.0mm, through the oppositely rolling roller crusher fragmentation, make carbon cast steel sand in carbon cast steel sand in the semi-finished product as cast condition, the semi-finished product quenching respectively, carbon cast steel sand was under 150 ℃～500 ℃ temperature during carbon cast steel sand or semi-finished product in the semi-finished product as cast condition were quenched, be incubated 30～60 minutes, carry out temper, carbon cast steel sand in making.
According to claim 1 described a kind of in carbon cast steel ball or middle carbon cast steel sand, it is characterized in that step 2) described in the aluminium consumption be the 0.015wt% of molten steel quality.
3. according to described a kind of middle carbon cast steel ball of claim 1 or middle carbon cast steel sand, it is characterized in that the oven dry described in the step 4) is for controlling water content less than 0.2wt%.
4. according to described a kind of middle carbon cast steel ball of claim 1 or middle carbon cast steel sand, it is characterized in that, Quenching Treatment cooling medium described in the step 5) is the circulating water below 50 ℃, and described middle carbon cast steel ball granularity is 0.1～4.0mm, and described middle carbon cast steel fineness of sand is 0.1～2.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100160724A CN101580919B (en) | 2009-06-24 | 2009-06-24 | Medium-carbon cast steel shot or medium-carbon cast steel grit and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100160724A CN101580919B (en) | 2009-06-24 | 2009-06-24 | Medium-carbon cast steel shot or medium-carbon cast steel grit and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101580919A CN101580919A (en) | 2009-11-18 |
| CN101580919B true CN101580919B (en) | 2011-06-01 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787422B (en) * | 2010-01-22 | 2012-06-06 | 山东开泰集团有限公司 | Method and device for secondary quenching of high-carbon cast steel slot or high-carbon cast steel grit |
| CN101760693A (en) * | 2010-02-10 | 2010-06-30 | 淄博大亚金属科技股份有限公司 | Low segregation low-carbon casting steel shot |
| CN101857941B (en) * | 2010-06-02 | 2011-11-30 | 淄博大亚金属科技股份有限公司 | Manufacturing method of medium-carbon alloy cast steel shots |
| CN102453830B (en) * | 2010-10-25 | 2014-02-12 | 攀钢集团钢铁钒钛股份有限公司 | Preparation method of cast steel |
| CN102133643B (en) * | 2011-05-09 | 2013-01-16 | 山东众惠金属制品有限公司 | Steel grit produced by waste steel wires and production method thereof |
| CN102766828A (en) * | 2012-08-14 | 2012-11-07 | 辽宁龙源实业有限公司 | Low alloy steel cast steel shot or cast steel grit and preparation method thereof |
| CN105734416A (en) * | 2016-02-26 | 2016-07-06 | 铜陵安东铸钢有限责任公司 | Low-carbon sand for alloy cast steel and preparation method of low-carbon sand |
| CN106555116B (en) * | 2016-11-29 | 2019-04-05 | 连云港倍特超微粉有限公司 | A kind of steel casting surface Hardening Treatment antifriction alloy shot and preparation method thereof |
| CN106337154B (en) * | 2016-12-02 | 2018-04-10 | 山东理工大学 | Middle carbon rare earth alloy strengthened steel cast ball/sand and its preparation technology |
| CN109234640A (en) * | 2018-11-16 | 2019-01-18 | 泉州市恒通机械配件有限公司 | A kind of cast steel and its production technology |
| CN110722170A (en) * | 2019-10-26 | 2020-01-24 | 江苏亿达铸造机械有限公司 | Aerosol processing method for steel wire cut pellets |
| CN113789477B (en) * | 2021-09-16 | 2022-08-02 | 大连交通大学 | Cast steel shot with low-carbon martensite structure and preparation process thereof |
| CN114131515A (en) * | 2021-12-03 | 2022-03-04 | 山西柴油机工业有限责任公司 | Shot blasting medium |
-
2009
- 2009-06-24 CN CN2009100160724A patent/CN101580919B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
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| JP昭57-9855A 1982.01.19 |
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