CN103627959B - A kind of Heat-resistant alloy steel liner plate material and preparation method thereof - Google Patents
A kind of Heat-resistant alloy steel liner plate material and preparation method thereof Download PDFInfo
- Publication number
- CN103627959B CN103627959B CN201310583556.3A CN201310583556A CN103627959B CN 103627959 B CN103627959 B CN 103627959B CN 201310583556 A CN201310583556 A CN 201310583556A CN 103627959 B CN103627959 B CN 103627959B
- Authority
- CN
- China
- Prior art keywords
- ramp
- powder
- iron
- insulation
- liner plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Powder Metallurgy (AREA)
Abstract
A kind of Heat-resistant alloy steel liner plate material, the chemical element composition that it contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.2-1.4, manganese 2.6-2.8, molybdenum 0.9-1.2, copper 0.05-0.08, titanium 1.2-1.4, Hf0.04-0.07, S≤0.04, P≤0.04, surplus are iron.Liner plate of the present invention has excellent thermotolerance and solidity to corrosion, and have higher hardness and wear resistance, also have higher intensity and good toughness, its wear resistance improves more than 2 times than the high manganese steel lining plate life-span, and cost performance is higher simultaneously.The present invention uses part scrap iron as raw material, and through secondary refining, conservative control casting postheat treatment temperature, throwing raw materials in batches, makes alloy quality more stable uniform, improves comprehensive mechanical property.Refining agent of the present invention is used for Foundry Production, significantly improves yield rate.
Description
Technical field
The present invention relates to metal material field, particularly relate to a kind of Heat-resistant alloy steel liner plate material and preparation method thereof.
Background technology
Lining material, through the development of more than 30 years, experienced by high violent steel, common spoken parts in traditional operas cast steel, ni-hard cast iron, high chromium white iron to the developmental stage of the middle-low alloy steel of modified high manganese steel and various Q-tempering technique.In practical application domestic at present, be still that high mangaenese steel rules all the land, in several main flow material, high mangaenese steel good toughness, but wear resistance and erosion resistance are also undesirable; Wear resistance of high-chromium iron is good, but toughness is poor again; Middle-low alloy steel fragility and erosion resistance are not up to standard.Need, from the more excellent lining material of the aspect such as starting material, technique research and development over-all properties, to enhance productivity, to reduce wear, reduce costs.
Summary of the invention
The object of the present invention is to provide a kind of Heat-resistant alloy steel liner plate material and preparation method thereof, it is high that this alloy material has intensity, heat-resisting, corrosion-resistant, wear-resisting advantage.
Technical scheme of the present invention is as follows:
A kind of Heat-resistant alloy steel liner plate material, is characterized in that: the chemical element composition that it contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.2-1.4, manganese 2.6-2.8, molybdenum 0.9-1.2, copper 0.05-0.08, titanium 1.2-1.4, Hf0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
The production method of described Heat-resistant alloy steel liner plate material, is characterized in that:
(1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:0.5-1 ratio, the pig iron is added drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) lot sequence, dropping into alloying element in alloying process in stove is: (1) manganese, copper; (2) silicon, titanium; (3) other remaining components; The each batch of timed interval of dropping into element is 20-24 minute, stirs after feeding intake.
Described casting postheat treatment is: first by room temperature with 200-220 DEG C/h of ramp to 500-510 DEG C, insulation 60-70 minute, again with 200-220 DEG C/h of ramp to 650-660 DEG C, insulation 60-70 minute, again with 220-230 DEG C/h of ramp to 940-950 DEG C, insulation 3-4 hour; 600-610 DEG C is cooled to again with 180-190 DEG C/h of speed, then with 200-220 DEG C/h of ramp to 700-710 DEG C, then be cooled to 480-500 DEG C with 180-190 DEG C/h of speed, insulation 70-80 minute; 220-230 DEG C is cooled to again, insulation 2-3 hour with 170-180 DEG C/h of speed; Again with 200-220 DEG C/h of ramp to 330-350 DEG C, then be cooled to 200-210 DEG C with 160-170 DEG C/h of speed, then with 180-190 DEG C/h of ramp to 530-550 DEG C, insulation 2-3 hour, takes out air cooling and get final product.
Described refining agent is made up of the raw material of following weight part: instrument comminuted steel shot 30-40, medical stone 1-2, Calcium Fluoride (Fluorspan) 3-4, magnesium oxide 6-7, iron(ic) chloride 1-2, feldspar in powder 2-3, Tremoliteor Tremoliteasbestos 5-6, magnesium sulfate 2-3, nano silicon 2-3, jade powder 3-4, montmorillonite 1-2, potassium silicofluoride 4-5; Each raw material mixes by preparation method, is heated to molten state, then, is poured into Quench in pure water, then is ground into 100-200 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2-3%, the nano-carbon powder of 1-2%, after mixing, under 8-15Mpa, be pressed into base, then, at 900-950 DEG C, 3-4 hour is calcined, after cooling, be ground into 150-250 order powder again, obtain final product.
Beneficial effect of the present invention
Liner plate of the present invention has excellent thermotolerance and solidity to corrosion, and have higher hardness and wear resistance, also have higher intensity and good toughness, its wear resistance improves more than 2 times than the high manganese steel lining plate life-span, and cost performance is higher simultaneously.The present invention uses part scrap iron as raw material, and through secondary refining, conservative control casting postheat treatment temperature, throwing raw materials in batches, makes alloy quality more stable uniform, improves comprehensive mechanical property.Refining agent of the present invention is used for Foundry Production, significantly improves yield rate, and the degree of porosity particularly in foundry goods reduces 1-2 degree, and can not produce pore at cast(ing) surface, trapped oxide also obviously reduces, and oxide inclusion is at about 2 grades.
Embodiment
A kind of Heat-resistant alloy steel liner plate material, the chemical element composition that it contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.2-1.4, manganese 2.6-2.8, molybdenum 0.9-1.2, copper 0.05-0.08, titanium 1.2-1.4, Hf0.04-0.07, S≤0.04, P≤0.04, surplus are iron.
The production method of described Heat-resistant alloy steel liner plate material is as follows:
(1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:0.7 ratio, the pig iron is added drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) lot sequence, dropping into alloying element in alloying process in stove is: (1) manganese, copper; (2) silicon, titanium; (3) other remaining components; The each batch of timed interval of dropping into element is 22 minutes, stirs after feeding intake.
Described casting postheat treatment is: elder generation with 210 DEG C/h of ramp to 505 DEG C by room temperature, is incubated 65 minutes, then with 210 DEG C/h of ramp to 655 DEG C, is incubated 65 minutes, then with 225 DEG C/h of ramp to 945 DEG C, be incubated 3.5 hours; 605 DEG C are cooled to again with 185 DEG C/h of speed, then with 210 DEG C/h of ramp to 705 DEG C, then be cooled to 490 DEG C with 185 DEG C/h of speed, be incubated 75 minutes; Be cooled to 225 DEG C with 175 DEG C/h of speed again, be incubated 2.5 hours; Again with 210 DEG C/h of ramp to 340 DEG C, then be cooled to 205 DEG C with 165 DEG C/h of speed, then with 185 DEG C/h of ramp to 540 DEG C, be incubated 2.5 hours, take out air cooling and get final product.
Described refining agent is made up of the raw material of following weight part (kilogram): instrument comminuted steel shot 35, medical stone 1.5, Calcium Fluoride (Fluorspan) 3.5, magnesium oxide 6.5, iron(ic) chloride 1.5, feldspar in powder 2.5, Tremoliteor Tremoliteasbestos 5.5, magnesium sulfate 2.5, nano silicon 2.5, jade powder 3.5, montmorillonite 1.5, potassium silicofluoride 4.5; Each raw material mixes by preparation method, is heated to molten state, then, is poured into Quench in pure water, then is ground into 150 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2.6%, the nano-carbon powder of 1.5%, after mixing, under 11Mpa, be pressed into base, then, calcine 3.6 hours at 940 DEG C, after cooling, then be ground into 190 order powder, obtain final product.
The mechanical property of Heat-resistant alloy steel liner plate material of the present invention is: tensile strength 1273MPa, yield strength 932MPa, unit elongation 13.4%, relative reduction in area 28%, impact absorbing energy 53J, impelling strength 63J/cm2, hardness 268HB.
Claims (1)
1. a production method for Heat-resistant alloy steel liner plate material, is characterized in that: the chemical element composition that this steel alloy lining material contains and mass percent thereof are: carbon 1.2-1.4, silicon 1.2-1.4, manganese 2.6-2.8, molybdenum 0.9-1.2, copper 0.05-0.08, titanium 1.2-1.4, Hf0.04-0.07, S≤0.04, P≤0.04, surplus are iron;
The production method of described Heat-resistant alloy steel liner plate material:
(1), the preparation pig iron and scrap iron are originated as ferrous substrate in 1:0.5-1 ratio, the pig iron is added drop in stove and melt, carry out desulfurization, deoxidation, employing refining agent initial refining, add alloying constituent carry out alloying, then add scrap iron fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment;
(2) lot sequence, dropping into alloying element in alloying process in stove is: (1) manganese, copper; (2) silicon, titanium; (3) other remaining components; The each batch of timed interval of dropping into element is 20-24 minute, stirs after feeding intake;
Described casting postheat treatment is: first by room temperature with 200-220 DEG C/h of ramp to 500-510 DEG C, insulation 60-70 minute, again with 200-220 DEG C/h of ramp to 650-660 DEG C, insulation 60-70 minute, again with 220-230 DEG C/h of ramp to 940-950 DEG C, insulation 3-4 hour; 600-610 DEG C is cooled to again with 180-190 DEG C/h of speed, then with 200-220 DEG C/h of ramp to 700-710 DEG C, then be cooled to 480-500 DEG C with 180-190 DEG C/h of speed, insulation 70-80 minute; 220-230 DEG C is cooled to again, insulation 2-3 hour with 170-180 DEG C/h of speed; Again with 200-220 DEG C/h of ramp to 330-350 DEG C, then be cooled to 200-210 DEG C with 160-170 DEG C/h of speed, then with 180-190 DEG C/h of ramp to 530-550 DEG C, insulation 2-3 hour, takes out air cooling and get final product;
Described refining agent is made up of the raw material of following weight part: instrument comminuted steel shot 30-40, medical stone 1-2, Calcium Fluoride (Fluorspan) 3-4, magnesium oxide 6-7, iron(ic) chloride 1-2, feldspar in powder 2-3, Tremoliteor Tremoliteasbestos 5-6, magnesium sulfate 2-3, nano silicon 2-3, jade powder 3-4, montmorillonite 1-2, potassium silicofluoride 4-5; Each raw material mixes by preparation method, is heated to molten state, then, is poured into Quench in pure water, then is ground into 100-200 order powder; Gained powder is added and is equivalent to the silane resin acceptor kh-550 of powder weight 2-3%, the nano-carbon powder of 1-2%, after mixing, under 8-15MPa, be pressed into base, then, at 900-950 DEG C, 3-4 hour is calcined, after cooling, be ground into 150-250 order powder again, obtain final product.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310583556.3A CN103627959B (en) | 2013-11-20 | 2013-11-20 | A kind of Heat-resistant alloy steel liner plate material and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310583556.3A CN103627959B (en) | 2013-11-20 | 2013-11-20 | A kind of Heat-resistant alloy steel liner plate material and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103627959A CN103627959A (en) | 2014-03-12 |
CN103627959B true CN103627959B (en) | 2016-01-20 |
Family
ID=50209403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310583556.3A Expired - Fee Related CN103627959B (en) | 2013-11-20 | 2013-11-20 | A kind of Heat-resistant alloy steel liner plate material and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103627959B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104032163B (en) * | 2014-05-12 | 2016-04-06 | 蚌埠市宏威滤清器有限公司 | Cutting brass alloy material and preparation method thereof |
CN104164629A (en) * | 2014-07-25 | 2014-11-26 | 合肥市瑞宏重型机械有限公司 | High-manganese heat-resistant alloy steel and manufacturing method thereof |
CN104152817A (en) * | 2014-07-31 | 2014-11-19 | 宁国市鑫煌矿冶配件制造有限公司 | Lining board for ball mill for crushing bulk materials |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2662460A1 (en) * | 2012-05-07 | 2013-11-13 | Valls Besitz GmbH | Tough bainitic heat treatments on steels for tooling |
-
2013
- 2013-11-20 CN CN201310583556.3A patent/CN103627959B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2662460A1 (en) * | 2012-05-07 | 2013-11-13 | Valls Besitz GmbH | Tough bainitic heat treatments on steels for tooling |
Also Published As
Publication number | Publication date |
---|---|
CN103627959A (en) | 2014-03-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103602911B (en) | A kind of heat resistant and wear resistant steel alloy lining material and preparation method thereof | |
CN103614647A (en) | Rare earth alloy steel material used for valves and preparation method of the material | |
CN103627959B (en) | A kind of Heat-resistant alloy steel liner plate material and preparation method thereof | |
CN103643164A (en) | Red-hardness high alloy steel material for pump valves and preparation method thereof | |
CN103614622A (en) | A low-temperature-resistant alloy material used for pump valve and a preparation method thereof | |
CN103667989B (en) | A kind of rare earth abrasion-proof stainless steel lining material and preparation method thereof | |
CN103614660A (en) | High-yield-strength alloy steel material used for pump valves and preparation method of the alloy steel material | |
CN103667945B (en) | A kind of Wear-resistant high-manganese steel liner plate material and preparation method thereof | |
CN103614656A (en) | High-vanadium alloy steel material used for bearings and preparation method thereof | |
CN103627967A (en) | Wear-resistant alloy steel material for pump casing and preparation method thereof | |
CN103628001A (en) | Alloy steel material for corrosion-resistant pump valve and preparation method thereof | |
CN103602912B (en) | A kind of abrasion-resistant alloy steel lining plate material and preparation method thereof | |
CN103667990B (en) | A kind of heat-resistance abrasion-resistance alloy steel liner plate material and preparation method thereof | |
CN103667988B (en) | A kind of alloy steel material for transferpump pipeline and preparation method thereof | |
CN103667867B (en) | A kind of high-carbon alloy steel lining material and preparation method thereof | |
CN103627968B (en) | A kind of high strength alloy steel lining material and preparation method thereof | |
CN103602928B (en) | A kind of high-strength wear-resistant alloy steel liner plate material and preparation method thereof | |
CN103667946B (en) | A kind of tungstenic Heat-resistant alloy steel liner plate material and preparation method thereof | |
CN104213021A (en) | Wear resistant high-carbon steel pump valve material and preparation method thereof | |
CN103643140A (en) | Highly wear-resistant pump shaft medium carbon steel material and preparation method thereof | |
CN103627965A (en) | High-hardness alloy steel hammerhead material and preparation method thereof | |
CN103667942B (en) | A kind of wear-resisting pump shaft mild steel material and preparation method thereof | |
CN103614666A (en) | High-hardness and low-carbon steel material for pump valve and preparation method of high-hardness and low-carbon steel material | |
CN104213046A (en) | Steel material for hydraulic valve and preparing method of steel material | |
CN103667939B (en) | A kind of spot contact bearing manganese steel material and preparation method thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20181120 |