CN105463344A - High-finish-degree antibacterial stainless steel pump valve casting and manufacturing method thereof - Google Patents
High-finish-degree antibacterial stainless steel pump valve casting and manufacturing method thereof Download PDFInfo
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- CN105463344A CN105463344A CN201510833895.1A CN201510833895A CN105463344A CN 105463344 A CN105463344 A CN 105463344A CN 201510833895 A CN201510833895 A CN 201510833895A CN 105463344 A CN105463344 A CN 105463344A
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- stainless steel
- pump valve
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/007—Ferrous alloys, e.g. steel alloys containing silver
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a high-finish-degree antibacterial stainless steel pump valve casting. According to the stainless steel pump valve casting, the use amount of elements such as Cu, Zr and Ag is properly increased on the basis that low-carbon steel has good toughness and plasticity, good casting mold forming performance is given to a stainless steel casting material, the hardness and toughness are achieved, corrosion resistance is extremely excellent, the certain antibacterial property is achieved, the situation that the surface of the material breeds bacteria and consequently use is affected can be prevented, crystal nucleuses can be refined effectively through the added rare earth element, the surface quality of the casting is improved, shrinkage cavities are reduced, and a high-finish-degree material is obtained; and the deoxygenation and impurity removal effects are achieved through a composite refining agent of nanometer Ca-RE intermediate phase alloy powder loaded by honeycomb ceramic powder and graphene, the slagging speed is high, efficiency is high, the degree of purity of molten steel can be increased effectively, the performance of stainless steel heat-treated multiple times is stable, and the energy-saving and efficient production effects of products are achieved.
Description
Technical field
The present invention relates to stainless cast steel part technical field, particularly relate to a kind of best bright finish antimicrobial form stainless steel pump valve foundry goods and preparation method thereof.
Background technology
Stainless Steel Pump, valve are widely used in chemical industry, petrochemical industry, oil, papermaking, mining, electric power, liquefied gas, food, pharmacy, plumbing, municipal administration, mechanical equipment coordination, electronic industry, the fields such as urban construction.Pump is the parts carrying various different media, and valve is function unit in pipeline fluid delivery system, it is used to change path section and medium flowing direction, has the functions such as water conservancy diversion, cut-off, adjustment, throttling, non-return, shunting or overflow release, both usually support the use.
Because the medium of Stainless Steel Pump, valve contact is varied, may be water, steam, oil product, gas, mud, various corrosive medium, liquid metal and radioactive fluid etc., therefore higher to the performance requriements of pump valve material, pump valve steel alloy spread in performance is in the market uneven, Production requirement can not be met far away, be badly in need of setting about from technique and formula, obtain the stainless material of more high-quality and high-efficiency.
Summary of the invention
The object of the invention is exactly the defect in order to make up prior art, provides a kind of best bright finish antimicrobial form stainless steel pump valve foundry goods and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of best bright finish antimicrobial form stainless steel pump valve foundry goods, in this stainless cast steel part, the weight percentage of each component is: Cr:15-20%, Mn:1.5-2.5%, Ni:5.0-6.5%, Si:0.4-0.5%, Gd:0.2-0.3%, Ag:0.1-0.2%, Cu:1.2-1.5%, N:0.6-1.0%, Te:0.4-0.5%, Zr:1.2-1.5%, S < 0.03%, P < 0.03%, C≤0.25%, refining agent 0.3-0.5%, and all the other are Fe and inevitable impurity.
Described a kind of best bright finish antimicrobial form stainless steel pump valve foundry goods, described refining agent is made up of the raw material of following weight percent: ceramic honey comb powder 5-8, Graphene 0.1-0.2, dehydrated alcohol 10-12, Ca content is the Al-Ca master alloyed powder 5-6 of 75-80wt.%, RE content is 10-15wt.%Al-RE master alloyed powder 3-4, stearic acid 1-2, the preparation method of this refining agent is: first by Al-Ca master alloyed powder, Al-RE master alloyed powder drops in ball grinder together, dehydrated alcohol is added after being uniformly mixed, stearic acid, Graphene, the 2-3h of ball milling mixing in confined conditions, ceramic honey comb powder is added after ball milling terminates, continue grinding 20-30min, after grinding terminates, mixture is taken out, drying at room temperature, remove dehydrated alcohol and stearic acid completely, obtain.
The preparation method of described a kind of best bright finish antimicrobial form stainless steel pump valve foundry goods, described preparation method is:
(1) each raw material except refining agent is dropped in smelting furnace according to element wt proportioning, be heated to 1650 DEG C of-1720 DEG C of meltings, add refining agent subsequently, after being uniformly mixed, liquation is warming up to 1680-1750 DEG C, refining treatment 40-50min, finally by gained liquation through deslagging, degassed after be poured in mold cavity, naturally cool to the demoulding after room temperature, obtain ingot casting;
(2) 680-750 DEG C is heated to after the ingot casting surface treatment of gained with the temperature rise rate of 100-120 DEG C/h, insulation 2-3h, cold quenching is to 550-600 DEG C subsequently, air cooling is continued to 350-400 DEG C after insulation 2-3h, be warming up to 580-650 DEG C with the speed of 80-100 DEG C/h after insulation 1-2h, after insulation 2-3h, air cooling is to room temperature and get final product.
The present invention suitably improves Cu on the basis that soft steel possesses excellent toughness and plasticity, Zr, the consumption of the elements such as Ag, impart the cast moulding property that stainless cast steel part material is good, Hardness and toughness has concurrently, erosion resistance is splendid, also possesses certain germ resistance, material surface breed bacteria can be prevented, impact uses, the rare earth element added can effective refinement nucleus, improve the surface quality of foundry goods, reduce shrinkage cavity, obtain high bright and clean material, effect of deoxidation removal of impurities is had by the nanometer Ca-RE mesophase alloy powder of ceramic honey comb powder load and Graphene composite refiner, change slag speed fast, efficiency is high, effectively can improve the purity of molten steel, and the stainless steel stable performance obtained after repeatedly thermal treatment, product reaches the production effect of efficient energy-saving.
Embodiment
In this embodiment stainless cast steel part, the weight percentage of each component is: Cr:15%, Mn:1.5%, Ni:5.0%, Si:0.4%, Gd:0.2%, Ag:0.1%, Cu:1.2%, N:0.6%, Te:0.4%, Zr:1.2%, S < 0.03%, P < 0.03%, C:0.25%, refining agent 0.3%, and all the other are Fe and inevitable impurity.
Wherein refining agent is made up of the raw material of following weight percent: ceramic honey comb powder 5, Graphene 0.1, dehydrated alcohol 10, Ca content is the Al-Ca master alloyed powder 5 of 75wt.%, RE content is 10wt.%Al-RE master alloyed powder 3, stearic acid 1, the preparation method of this refining agent is: first by Al-Ca master alloyed powder, Al-RE master alloyed powder drops in ball grinder together, dehydrated alcohol is added after being uniformly mixed, stearic acid, Graphene, the 2h of ball milling mixing in confined conditions, ceramic honey comb powder is added after ball milling terminates, continue grinding 25min, after grinding terminates, mixture is taken out, drying at room temperature, remove dehydrated alcohol and stearic acid completely, obtain.
The preparation method of this embodiment stainless cast steel part is:
(1) each raw material except refining agent is dropped in smelting furnace according to element wt proportioning, be heated to 1680 DEG C of meltings, add refining agent subsequently, after being uniformly mixed, liquation is warming up to 1700 DEG C, refining treatment 40min, finally by gained liquation through deslagging, degassed after be poured in mold cavity, naturally cool to the demoulding after room temperature, obtain ingot casting;
(2) 700 DEG C are heated to after the ingot casting surface treatment of gained with the temperature rise rate of 100 DEG C/h, insulation 2h, subsequently cold quenching to 550 DEG C, continue air cooling to 350 DEG C after insulation 2h, be warming up to 600 DEG C with the speed of 80 DEG C/h after insulation 1h, after insulation 2h, air cooling is to room temperature and get final product.
The cast properties test result prepared is:
Tensile strength: 725.5MPa; Yield strength: 306.8MPa; Breaking tenacity: 528.4MPa; Plastix strain before fracture: 5.8%; Impelling strength: 70.6J/cm
2; Young's modulus: 215.8GPa; In acid-base solution, the erosion rate≤0.006mm/a of material, can reach 98.0% to colibacillary antibiotic rate, and the cast(ing) surface obtained is bright and clean, and fracture is smooth.
Claims (3)
1. a best bright finish antimicrobial form stainless steel pump valve foundry goods, it is characterized in that, in this stainless cast steel part, the weight percentage of each component is: Cr:15-20%, Mn:1.5-2.5%, Ni:5.0-6.5%, Si:0.4-0.5%, Gd:0.2-0.3%, Ag:0.1-0.2%, Cu:1.2-1.5%, N:0.6-1.0%, Te:0.4-0.5%, Zr:1.2-1.5%, S < 0.03%, P < 0.03%, C≤0.25%, refining agent 0.3-0.5%, and all the other are Fe and inevitable impurity.
2. a kind of best bright finish antimicrobial form stainless steel pump valve foundry goods as claimed in claim 1, it is characterized in that: described refining agent is made up of the raw material of following weight percent: ceramic honey comb powder 5-8, Graphene 0.1-0.2, dehydrated alcohol 10-12, Ca content is the Al-Ca master alloyed powder 5-6 of 75-80wt.%, RE content is 10-15wt.%Al-RE master alloyed powder 3-4, stearic acid 1-2, the preparation method of this refining agent is: first by Al-Ca master alloyed powder, Al-RE master alloyed powder drops in ball grinder together, dehydrated alcohol is added after being uniformly mixed, stearic acid, Graphene, the 2-3h of ball milling mixing in confined conditions, ceramic honey comb powder is added after ball milling terminates, continue grinding 20-30min, after grinding terminates, mixture is taken out, drying at room temperature, remove dehydrated alcohol and stearic acid completely, obtain.
3. the preparation method of a kind of best bright finish antimicrobial form stainless steel pump valve foundry goods as claimed in claim 1, it is characterized in that, described preparation method is:
(1) each raw material except refining agent is dropped in smelting furnace according to element wt proportioning, be heated to 1650 DEG C of-1720 DEG C of meltings, add refining agent subsequently, after being uniformly mixed, liquation is warming up to 1680-1750 DEG C, refining treatment 40-50min, finally by gained liquation through deslagging, degassed after be poured in mold cavity, naturally cool to the demoulding after room temperature, obtain ingot casting;
(2) 680-750 DEG C is heated to after the ingot casting surface treatment of gained with the temperature rise rate of 100-120 DEG C/h, insulation 2-3h, cold quenching is to 550-600 DEG C subsequently, air cooling is continued to 350-400 DEG C after insulation 2-3h, be warming up to 580-650 DEG C with the speed of 80-100 DEG C/h after insulation 1-2h, after insulation 2-3h, air cooling is to room temperature and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833895.1A CN105463344A (en) | 2015-11-25 | 2015-11-25 | High-finish-degree antibacterial stainless steel pump valve casting and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510833895.1A CN105463344A (en) | 2015-11-25 | 2015-11-25 | High-finish-degree antibacterial stainless steel pump valve casting and manufacturing method thereof |
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| CN105463344A true CN105463344A (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510833895.1A Pending CN105463344A (en) | 2015-11-25 | 2015-11-25 | High-finish-degree antibacterial stainless steel pump valve casting and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105821345A (en) * | 2016-05-07 | 2016-08-03 | 惠安县泰达商贸有限责任公司 | Alloy material for valve of airplane washroom |
| CN107460401A (en) * | 2017-08-18 | 2017-12-12 | 苏州曼里尼斯金属科技有限公司 | A kind of antibacterial metal material |
Citations (5)
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|---|---|---|---|---|
| CN1250105A (en) * | 1999-11-10 | 2000-04-12 | 韦世鹤 | Stainless steel refining agent and its usage in smelting stainless steel |
| JP2002167651A (en) * | 2000-11-16 | 2002-06-11 | Pohang Research Inst Of Industrial Science & Technology | Martensitic stainless steel and its production method |
| CN1948535A (en) * | 2006-11-09 | 2007-04-18 | 安徽工业大学 | Rare earth improving antibacterial performance silver containing stainless steel |
| CN102234741A (en) * | 2010-04-22 | 2011-11-09 | 宝山钢铁股份有限公司 | Low-Ni-containing austenitic antimicrobial stainless steel and manufacturing method thereof |
| CN104006198A (en) * | 2014-05-19 | 2014-08-27 | 安徽金大仪器有限公司 | High-precision valve resistant to abrasion and corrosion and manufacturing method thereof |
-
2015
- 2015-11-25 CN CN201510833895.1A patent/CN105463344A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1250105A (en) * | 1999-11-10 | 2000-04-12 | 韦世鹤 | Stainless steel refining agent and its usage in smelting stainless steel |
| JP2002167651A (en) * | 2000-11-16 | 2002-06-11 | Pohang Research Inst Of Industrial Science & Technology | Martensitic stainless steel and its production method |
| CN1948535A (en) * | 2006-11-09 | 2007-04-18 | 安徽工业大学 | Rare earth improving antibacterial performance silver containing stainless steel |
| CN102234741A (en) * | 2010-04-22 | 2011-11-09 | 宝山钢铁股份有限公司 | Low-Ni-containing austenitic antimicrobial stainless steel and manufacturing method thereof |
| CN104006198A (en) * | 2014-05-19 | 2014-08-27 | 安徽金大仪器有限公司 | High-precision valve resistant to abrasion and corrosion and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 陆世英: "《不锈钢概论》", 31 January 2007, 中国科学技术出版社 * |
| 陈永著: "《不可不知的化学元素知识》", 28 February 2013, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105821345A (en) * | 2016-05-07 | 2016-08-03 | 惠安县泰达商贸有限责任公司 | Alloy material for valve of airplane washroom |
| CN107460401A (en) * | 2017-08-18 | 2017-12-12 | 苏州曼里尼斯金属科技有限公司 | A kind of antibacterial metal material |
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Application publication date: 20160406 |