CN110936302A - Corrosion-resistant cut pill and processing method thereof - Google Patents
Corrosion-resistant cut pill and processing method thereof Download PDFInfo
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- CN110936302A CN110936302A CN201911026620.1A CN201911026620A CN110936302A CN 110936302 A CN110936302 A CN 110936302A CN 201911026620 A CN201911026620 A CN 201911026620A CN 110936302 A CN110936302 A CN 110936302A
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- temperature
- corrosion
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- cooling
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C11/00—Selection of abrasive materials or additives for abrasive blasts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention provides a corrosion-resistant cut pill and a processing method thereof, wherein compounds of elements such as chromium, molybdenum, tungsten and the like in the formula are effective in corrosion resistance, mainly have acid resistance, and particularly have obvious effect on monobasic acid such as hydrochloric acid.
Description
Technical Field
The invention relates to the field of cut pill processing, in particular to a corrosion-resistant cut pill and a processing method thereof.
Background
The shot cutting is a metal abrasive material necessary for surface processing, and is mainly used for shot blasting equipment, wherein the shot blasting equipment shoots shot cutting to the surface of a casting at a high speed, rust and burrs on the surface of the casting are removed, and surface treatment is carried out. The existing cut pills mostly pay attention to hardness and toughness, the research on corrosion resistance cut pills is few, a casting processing factory usually stores a large amount of cut pills for later use due to large usage amount in actual production, but a large amount of cut pills are rusted, corroded and scrapped due to the simplicity and crueness of the factory environment and the storage mode, and a large amount of waste is caused, so that the formula of the corrosion resistance cut pills is researched, and hardness and toughness are considered.
Disclosure of Invention
Aiming at the technical problem, the invention provides a corrosion-resistant cutting pill which is characterized in that: the components mainly comprise 25-40% of molybdenum element, 5% of tungsten element, 8-15% of chromium element, less than 0.3% of silicon element, less than 10% of cobalt element, more than 0.85% of carbon element and unremovable impurities by mass ratio, the components can be additionally added with less than 35% of manganese element, less than 20% of vanadium element or less than 15% of iron element by mass ratio, one or two of the three elements are selected and supplemented, the elements in the components are mainly obtained by sintering quartz powder, white iron, cast steel and cullet, the Vickers hardness at the quarter-diameter deep part is more than 550, and the surface reduction rate is 85-95.
A corrosion-resistant cut-pill processing method comprises the following steps: firstly, putting glass cullet into a crusher to be crushed into glass fine powder with the particle mesh number of more than 450 meshes, pouring 15 parts of cast steel and 32 parts of white iron into a high-temperature melting furnace, setting the temperature to be 1460-1467 ℃, and melting into metal fluid; secondly, pouring 10 parts of sintered quartz powder and 5 parts of glass fine powder into a material tank, and uniformly stirring and mixing; thirdly, the temperature in the high-temperature melting furnace is increased to the discharging temperature, the internal metal fluid is injected into the charging bucket, and the metal fluid is stirred and mixed uniformly to form a metal mixture; fourthly, introducing high-speed nitrogen flow to the horizontal direction of the charging bucket, and beating the metal mixture inside into spherical powder; fifthly, filling the spherical powder into a closed box, and carrying out oxygen extraction operation on the inside of the closed box; sixthly, after the oxygen is pumped out, welding and sealing the pipe orifice; seventhly, heating the whole closed box to a forming temperature, and filling the whole closed box into a glue film box; eighthly, performing pressure forming operation on the adhesive film box by using a hydraulic press to prepare a metal block, and forming densification inside the adhesive film box after 5 min; and step nine, feeding the formed metal block into a high-temperature melting furnace for the second time, setting the temperature to be 1300-1400 ℃, preparing a secondary metal fluid, cooling to 1000 ℃, preparing the metal fluid into strips by a wire drawing device, and cutting the strips into cut pills by a cutting device.
Preferably, the discharging temperature is 1560-1650 ℃.
Preferably, the molding temperature is 1500 ℃ or higher.
Preferably, the cut pellets are cooled in a cooling tank.
Preferably, the cooling liquid in the cooling pool is cooling oil.
Preferably, the cooling liquid in the cooling pool is cooling water.
Has the advantages that:
1. the compounds of elements such as chromium, molybdenum, tungsten and the like in the formula are effective in corrosion resistance, mainly have acid resistance, and particularly have obvious effect on monoacids such as hydrochloric acid.
2. The traditional HIP processing method is improved, and higher toughness and hardness are obtained.
3. The processing method is more refined, the aerosol processing and the cutting processing are combined, the quenching and the tempering are both realized, and the finished cut pellets have excellent indexes.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The invention provides a corrosion-resistant cutting pill, which is characterized in that: the components mainly comprise 25-40% of molybdenum element, 5% of tungsten element, 8-15% of chromium element, less than 0.3% of silicon element, less than 10% of cobalt element, more than 0.85% of carbon element and unremovable impurities by mass ratio, the components can be additionally added with less than 35% of manganese element, less than 20% of vanadium element or less than 15% of iron element by mass ratio, one or two of the three elements are selected and supplemented, the elements in the components are mainly obtained by sintering quartz powder, white iron, cast steel and cullet, the Vickers hardness at the quarter-diameter deep part is more than 550, and the surface reduction rate is 85-95.
A corrosion-resistant cut-pill processing method comprises the following steps:
firstly, putting glass cullet into a crusher to be crushed into glass fine powder with the particle mesh number of more than 450 meshes, pouring 15 parts of cast steel and 32 parts of white iron into a high-temperature melting furnace, setting the temperature to be 1460-1467 ℃, and melting into metal fluid;
secondly, pouring 10 parts of sintered quartz powder and 5 parts of glass fine powder into a material tank, and uniformly stirring and mixing;
thirdly, the temperature in the high-temperature melting furnace is increased to the discharging temperature, the internal metal fluid is injected into the charging bucket, and the metal fluid is stirred and mixed uniformly to form a metal mixture;
fourthly, introducing high-speed nitrogen flow to the horizontal direction of the charging bucket, and beating the metal mixture inside into spherical powder;
fifthly, filling the spherical powder into a closed box, and carrying out oxygen extraction operation on the inside of the closed box;
sixthly, after the oxygen is pumped out, welding and sealing the pipe orifice;
seventhly, heating the whole closed box to a forming temperature, and filling the whole closed box into a glue film box;
eighthly, performing pressure forming operation on the adhesive film box by using a hydraulic press to prepare a metal block, and forming densification inside the adhesive film box after 5 min;
and step nine, feeding the formed metal block into a high-temperature melting furnace for the second time, setting the temperature to be 1300-1400 ℃, preparing a secondary metal fluid, cooling to 1000 ℃, preparing the metal fluid into strips by a wire drawing device, and cutting the strips into cut pills by a cutting device.
The discharging temperature of the metal fluid discharged from the high-temperature melting furnace is 1560-1650 ℃, the fluidity is good, the flow speed is fast, and the charging bucket is not damaged, the molding temperature of the common heating of the closed box is more than 1500 ℃, but preferably not more than 2500 ℃, the press plate of the hydraulic press is damaged, the cut pill which is cut and molded needs to be cooled by a cooling pool, and one of the two ways of oil cooling and water cooling can be adopted. However, the water temperature of water cooling needs to be gradually cooled, and if normal-temperature water is directly adopted for cutting and cooling pills, the surface of the cut pills is easy to crack.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
Claims (7)
1. A corrosion-resistant cutting pill is characterized in that: the components mainly comprise 25-40% of molybdenum element, 5% of tungsten element, 8-15% of chromium element, less than 0.3% of silicon element, less than 10% of cobalt element, more than 0.85% of carbon element and unremovable impurities by mass ratio, the components can be additionally added with less than 35% of manganese element, less than 20% of vanadium element or less than 15% of iron element by mass ratio, one or two of the three elements are selected and supplemented, the elements in the components are mainly obtained by sintering quartz powder, white iron, cast steel and cullet, the Vickers hardness at the quarter-diameter deep part is more than 550, and the surface reduction rate is 85-95.
2. The corrosion-resistant shot-cutting processing method according to claim 1, comprising the steps of: firstly, putting glass cullet into a crusher to be crushed into glass fine powder with the particle mesh number of more than 450 meshes, pouring 15 parts of cast steel and 32 parts of white iron into a high-temperature melting furnace, setting the temperature to be 1460-1467 ℃, and melting into metal fluid; secondly, pouring 10 parts of sintered quartz powder and 5 parts of glass fine powder into a material tank, and uniformly stirring and mixing; thirdly, the temperature in the high-temperature melting furnace is increased to the discharging temperature, the internal metal fluid is injected into the charging bucket, and the metal fluid is stirred and mixed uniformly to form a metal mixture; fourthly, introducing high-speed nitrogen flow to the horizontal direction of the charging bucket, and beating the metal mixture inside into spherical powder; fifthly, filling the spherical powder into a closed box, and carrying out oxygen extraction operation on the inside of the closed box; sixthly, after the oxygen is pumped out, welding and sealing the pipe orifice; seventhly, heating the whole closed box to a forming temperature, and filling the whole closed box into a glue film box; eighthly, performing pressure forming operation on the adhesive film box by using a hydraulic press to prepare a metal block, and forming densification inside the adhesive film box after 5 min; and step nine, feeding the formed metal block into a high-temperature melting furnace for the second time, setting the temperature to be 1300-1400 ℃, preparing a secondary metal fluid, cooling to 1000 ℃, preparing the metal fluid into strips by a wire drawing device, and cutting the strips into cut pills by a cutting device.
3. The corrosion-resistant shot-cutting processing method according to claim 2, characterized in that: the discharging temperature is 1560-1650 ℃.
4. The corrosion-resistant shot-cutting processing method according to claim 2, characterized in that: the molding temperature is more than 1500 ℃.
5. The corrosion-resistant shot-cutting processing method according to claim 2, characterized in that: cutting into cut pills, and cooling in a cooling pool.
6. The corrosion-resistant shot-cutting processing method according to claim 5, characterized in that: the cooling liquid in the cooling pool is cooling oil.
7. The corrosion-resistant shot-cutting processing method according to claim 2, characterized in that: the cooling liquid in the cooling pool is cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911026620.1A CN110936302A (en) | 2019-10-26 | 2019-10-26 | Corrosion-resistant cut pill and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911026620.1A CN110936302A (en) | 2019-10-26 | 2019-10-26 | Corrosion-resistant cut pill and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110936302A true CN110936302A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911026620.1A Pending CN110936302A (en) | 2019-10-26 | 2019-10-26 | Corrosion-resistant cut pill and processing method thereof |
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| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064608A (en) * | 1976-09-30 | 1977-12-27 | Eutectic Corporation | Composite cast iron drier roll |
| CN86107901A (en) * | 1985-11-22 | 1987-05-20 | 帕金-埃尔默有限公司 | The iron alloy that contains molybdenum, copper and boron |
| WO1993003921A1 (en) * | 1991-08-26 | 1993-03-04 | Preemptive Technologies, Inc. | Surface finish compositions |
| CN1453386A (en) * | 2002-04-28 | 2003-11-05 | 舒克东 | Stainless steel ball |
| CN101927422A (en) * | 2010-05-21 | 2010-12-29 | 贵州大学 | Manufacture technology of steel wire cut pill |
| CN108754332A (en) * | 2018-07-02 | 2018-11-06 | 淄博鲁宝金属制品有限公司 | Alloy reinforced cast steel ball and its production method |
-
2019
- 2019-10-26 CN CN201911026620.1A patent/CN110936302A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4064608A (en) * | 1976-09-30 | 1977-12-27 | Eutectic Corporation | Composite cast iron drier roll |
| CN86107901A (en) * | 1985-11-22 | 1987-05-20 | 帕金-埃尔默有限公司 | The iron alloy that contains molybdenum, copper and boron |
| WO1993003921A1 (en) * | 1991-08-26 | 1993-03-04 | Preemptive Technologies, Inc. | Surface finish compositions |
| CN1453386A (en) * | 2002-04-28 | 2003-11-05 | 舒克东 | Stainless steel ball |
| CN101927422A (en) * | 2010-05-21 | 2010-12-29 | 贵州大学 | Manufacture technology of steel wire cut pill |
| CN108754332A (en) * | 2018-07-02 | 2018-11-06 | 淄博鲁宝金属制品有限公司 | Alloy reinforced cast steel ball and its production method |
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Application publication date: 20200331 |