CN109015417A - A kind of novel steel sand and its production method - Google Patents
A kind of novel steel sand and its production method Download PDFInfo
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- CN109015417A CN109015417A CN201810937377.8A CN201810937377A CN109015417A CN 109015417 A CN109015417 A CN 109015417A CN 201810937377 A CN201810937377 A CN 201810937377A CN 109015417 A CN109015417 A CN 109015417A
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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
-
- 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
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
-
- 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
- B22F9/10—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 using centrifugal force
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a kind of novel steel sand and its production methods, including steel sand ontology, penetrant and protective coating, the steel sand ontology is made of alloy material and waste material steel material, and micropore is provided in the steel sand ontology being made of alloy material and waste material steel material, penetrant is provided in the micropore, the steel sand body peripheral is provided with protective coating.A kind of novel steel sand of the present invention and its production method under the premise of guaranteeing this weight of steel sand and effectively raise steel sand ontology service precision in use, and then effectively extend the service life of steel sand ontology and effectively raise the precision of the surface treatment of workpiece.
Description
Technical field
The present invention relates to the manufacturing process relevant device technical field of metallic particles, specially a kind of novel steel sand and its life
Production method.
Background technique
Sandblasting not only can achieve the purpose of coarse surface as a kind of roughing in surface means, but also can provide table
Face pressure stress, thus improve bear alternate load effect workpiece fatigue strength, steel sand as sandblasting it is main surface treatment and
The tool that workpiece directly contacts, the precision on surface have direct effect to alternate load effect workpiece is born.
Technique for manufacturing steel grit in the prior art is simple, in turn results in that steel sand structure is simple and surface accuracy is lower, in turn
It reduces the precision of the processing to workpiece surface and has seriously affected the value of steel sand recycling, in turn resulted in the waste of resource
And Workpiece Machining Accuracy.
Summary of the invention
The purpose of the present invention is to provide a kind of novel steel sand and its production method, solves steel sand production in the prior art
Simple process, in turn results in that steel sand structure is simple and surface accuracy is lower, so reduce processing to workpiece surface precision and
The problem of having seriously affected the value that steel sand is recycled, having in turn resulted in the waste volume machining accuracy of resource.
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of novel steel sand, including steel sand sheet
Body, penetrant and protective coating, the steel sand ontology are made of alloy material and waste material steel material, and by alloy material and waste material
It is provided with micropore in the steel sand ontology that steel material is constituted, penetrant, the steel sand body peripheral setting are provided in the micropore
There is protective coating.
Further, the steel sand ontology is provided with corner angle or one such with spherical cambered surface, and scrap steel and conjunction
Specific gravity between golden material is set as 0.8:0.2.
Further, it is one such or a variety of low viscous to be set as water, oil, salting liquid, organic resin for the penetrant
Spend the sealing medium that fluent material is constituted.
Further, it is thin by electrostatic painting process to form a kind of metal coating in steel sand body surface for the protective coating
Film.
Further, it is one such to be set as zinc, chromium, nickel, titanium, silver-colored material for the metal coating film.
Further, metal coating film described in chromium material is set as plating hard chrome or decorative chromium plating is one such.
Further, a kind of production method based on a kind of novel steel sand described above is as follows:
S1: through electro-smelting and the alloy material of rational proportion is added in scrap steel, until meeting chemical component；
S2: the molten steel for meeting chemical component be granulated through centrifugal process and then be obtained blank steel material；
S3: blank steel material is subjected to drying for the first time and then is evaporated the excessive moisture in blank steel material；
S4: immediate quenching processing is carried out into the water when blank steel material temperature is down to 800~980 DEG C；
The blank steel material of quenching treatment: being carried out the evaporation of moisture for second drying by S5, and blank steel material be put into it is broken
Steel sand semi-finished product are broken into machine；
S6: steel sand semi-finished product coarse sizing is subjected to preliminary screening and is chosen；
S7: the qualified steel sand semi-finished product tentatively chosen are subjected to tempering and then obtain qualified steel sand finished product；
S8: by the steel sand finished product of tempering by by sealing medium through naturally osmotic, the method that vacuumizes and pressurize seeps
In the micropore for entering steel sand finished product, and then micropore gap filling is expired using sealing medium；
S9: the steel sand of impermeable seal is consolidated the sealing medium in micropore by nature (room temperature), cooling or heating means
Change, has the function that sealing；
S10: steel sand finished product accurately classify to steel sand finished product by fine screen point；
S11: the steel sand finished product after screening is formed into a kind of metal guarantor in steel sand finished surface by electrostatic painting process
Protect film；
S12: carrying out the cooling steel sand ontology for obtaining qualification for the steel sand finished product with metal coating film protective coating, and
Steel sand ontology is subjected to storage packaging factory.
Further, the centrifugal process in S2 is set as centrifuge centrifugal process or spinning cone atemization wherein
One kind, and cooling medium is water, and water temperature is set as 35 DEG C -40 DEG C.
Further, the method for sieving of the fine screen in S10 point is set as hydrometer method, vibration screening or imaging sieve
It selects one such.
Compared with prior art, the beneficial effects of the present invention are: the present invention has the characteristics that design is reasonable and easy to operate,
A kind of novel steel sand of the present invention and its production method under the premise of guaranteeing this weight of steel sand and effectively raise steel sand sheet
Body service precision in use, and then effectively extend the service life of steel sand ontology and effectively raise workpiece
The precision of surface treatment.
(1), for the present invention by being made of steel sand ontology alloy material and waste material steel material, steel sand ontology is provided with rib
Angle is one such with spherical cambered surface, and the specific gravity between scrap steel and alloy material is set as 0.8:0.2, and then convenient for logical
Cross alloy material effectively reduce waste material steel material composition steel sand body interior tissue it is loose, caused steel sand ontology toughness
The poor problem of lower cutting dynamics, in addition waste material steel material has the characteristics that materials are convenient, and then has effectively saved resource
Further improve the processing technology of steel sand ontology.
(2), for the present invention by being provided with penetrant in steel sand ontology, penetrant is set as water, oil, salting liquid, You Jishu
The sealing medium that rouge is one such or a variety of low-viscosity (mobile) liquid materials are constituted, by by sealing medium by naturally osmotic,
The method for vacuumizing and pressurizeing is penetrated into the micropore of steel sand ontology, and then is expired micropore gap filling using sealing medium, then
The sealing medium in micropore is solidified by nature (room temperature), cooling or heating means, has the function that sealing, so solve by
The easy dusting sand leakage problem of steel sand body peripheral under the conditions of pressure；Improve steel sand ontology product is corrosion-resistant, endurance quality；And then have
The processing performance for improving steel sand ontology of effect reduces the loss of steel sand ontology, has effectively saved resource.
(3), by being provided with protective coating in steel sand body peripheral, protective coating is existed the present invention by electrostatic painting process
Steel sand body surface forms a kind of metal coating film, in addition can according to actual needs set metal coating film to
Zinc, chromium, nickel, titanium, silver-colored material are one such.It is zinc-plated: primarily to allow steel sand body peripheral surface become it is more beautiful and
Have the function of anti-oxidant putting rust；Chromium plating: increase steel sand body peripheral surface wearability, and then can allow steel sand ontology more
It is sturdy and durable；And chromium plating can be one such using plating hard chrome or decorative chromium plating according to actual use demand, plates hard chrome master
The machinery being used under the condition of high temperature；Decorative chromium plating is primarily to allow surface is brighter, good appearance；Nickel plating: oxidation is borrowed
Reduction is deposited in steel sand body surface, for improving the corrosion resistance and wearability of steel sand ontology, increases beautiful and gloss；
Titanizing: it prevents steel sand body peripheral contaminated, allergic reaction will not be generated with human contact.In addition titanium compound color is a variety of,
Aesthetic effect can be increased, while titanium has the oxidation resistant function of antiacid alkali resistant；It is silver-plated: mainly there are two aspect effects, one is
Dicoration, one is functionality；Dicoration is for carrying out resistance to oxidation experiment；Functionality is mainly used for electronics industry, and electrode is led
The surface treatment of the electronics industry associated workpiece such as line, electric shock and pole piece, and then guaranteeing itself quality of steel sand ontology
Under precursor and effectively raise the flexibility that steel sand ontology uses.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of steel sand ontology of the present invention；
Fig. 2 is steel sand ontology processing process figure of the present invention.
In figure: 1- steel sand ontology, 10- micropore, 101- penetrant, 11- protective coating.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 and Fig. 2 are please referred to, the present invention provides a kind of technical solution: a kind of novel steel sand and its production method,
A kind of novel steel sand, including steel sand ontology 1, penetrant 101 and protective coating 11, steel sand ontology 1 is by alloy material
It is constituted with waste material steel material, steel sand ontology 1 is provided with corner angle or one such with spherical cambered surface, and scrap steel and alloy material
Specific gravity between matter is set as 0.8:0.2, and then convenient for effectively reducing the steel of waste material steel material composition by alloy material
1 interior tissue of sand ontology is loose, the poor problem of the caused lower cutting dynamics of 1 toughness of steel sand ontology, in addition waste material steel material
Have the characteristics that materials are convenient, and then has effectively saved the processing technology that resource further improves steel sand ontology 1；
And micropore 10 is provided in the steel sand ontology 1 being made of alloy material and waste material steel material, it is provided in micropore 10
Penetrant 101, penetrant 101 are set as that water, oil, salting liquid, organic resin be one such or a variety of low-viscosity (mobile) liquid materials
The sealing medium constituted is expected, by the way that sealing medium is penetrated into steel sand ontology 1 by naturally osmotic, the method for vacuumizing and pressurizeing
In micropore 10, and then 10 gap filling of micropore is expired using sealing medium, then passes through nature (room temperature), cooling or heating means
By the sealing medium solidification in micropore, have the function that sealing, and then solve the outer Charltons dusting of steel sand ontology 1 under pressure
Sand leakage problem；Improve steel sand ontology 1 product is corrosion-resistant, endurance quality；And then effectively raise the processability of steel sand ontology 1
Can, the loss of steel sand ontology 1 is reduced, resource has effectively been saved.
1 periphery of steel sand ontology is provided with protective coating 11, and protective coating 11 is by electrostatic painting process in 1 table of steel sand ontology
Face forms a kind of metal coating film, and it is one such that metal coating film is set as zinc, chromium, nickel, titanium, silver-colored material, zinc-plated: main
If anti-oxidant putting rust to allow 1 peripheral surface of steel sand ontology to become more beautiful and have the function of；Chromium plating: increase steel sand
The wearability of 1 peripheral surface of ontology, and then steel sand ontology 1 can be allowed more sturdy and durable；And chromium plating can be according to actual use
Demand is one such using plating hard chrome or decorative chromium plating, and plating hard chrome is mainly used for the machinery under the condition of high temperature；Decorative chromium plating
Primarily to allowing, 1 surface of steel sand ontology is brighter, good appearance；Nickel plating: borrow redox on 1 surface of steel sand ontology
Deposition increases beautiful and gloss for improving the corrosion resistance and wearability of steel sand ontology 1；Titanizing: it prevents outside steel sand ontology 1
Week is contaminated, will not generate allergic reaction with human contact.In addition titanium compound color is a variety of, can increase aesthetic effect, together
When titanium have the oxidation resistant function of antiacid alkali resistant；It is silver-plated: mainly to have two aspect effects, one is dicorations, and one is functionality；
Dicoration is for carrying out resistance to oxidation experiment；Functionality is mainly used for electronics industry, the electronics such as electrode, conducting wire, electric shock and pole piece
The surface treatment of industry associated workpiece, so guarantee steel sand ontology 1 itself quality precursor under and effectively raise
The flexibility that steel sand ontology 1 uses.
A kind of production method based on a kind of above-mentioned novel steel sand is as follows:
S1: through electro-smelting and the alloy material of rational proportion is added in scrap steel, until meeting chemical component；Alloy material
Specific gravity between scrap steel is set as 0.8:0.2, each chemical component ratio carbon (C): 0.70~1.20%, manganese (Mn): 0.35
~1.20%, silicon (Si): 0.40~1.20%, sulphur (S) :≤0.05%, phosphorus (P) :≤0.05%；Alloy material copper (Cu), boron
(B), nickel (Ni) and tungsten (W) are preferably arranged to≤0.50%, rare earth≤0.002%；
S2: the molten steel for meeting chemical component be granulated through centrifugal process and then be obtained blank steel material；Centrifugal process is set as
Centrifuge centrifugal process or spinning cone atemization are one such, and cooling medium is water, and water temperature is set as 35 DEG C -40
DEG C, and conventional centrifugal method is opened up in a series of special throwing disc of apertures around high-speed rotating by flowing to molten steel, liquid exists
Under centrifugal force effect, fly out from throwing disc fall into the water and shape blank steel at and producing blank steel material into embryo material using centrifugal process
Rate is higher, and greatly reduces the hollow ratio of embryo material；The molten steel of melting is passed through certain equipment by spinning cone atemization
It is allowed to form metal liquid film in rotating cone surface, then is atomized into tiny molten drop simultaneously under the action of centrifugal force and surface tension
It throws away outward；Cooling medium is ejected along the position perpendicular with the molten drop direction of motion simultaneously, shapes molten drop rapidly, in turn
So that the blank steel material quality and comprehensive mechanical property produced are good.
S3: blank steel material is subjected to drying for the first time and then is evaporated the excessive moisture in blank steel material；
S4: immediate quenching processing is carried out into the water when blank steel material temperature is down to 800~980 DEG C；
The blank steel material of quenching treatment: being carried out the evaporation of moisture by S5 by second of drying,
And blank steel material is put into crusher and is broken into steel sand semi-finished product；
S6: steel sand semi-finished product coarse sizing is subjected to preliminary screening and is chosen；
S7: the qualified steel sand semi-finished product tentatively chosen are subjected to tempering and then obtain qualified steel sand finished product；
S8: by the steel sand finished product of tempering by by sealing medium through naturally osmotic, the method that vacuumizes and pressurize seeps
Enter in the micropore 10 of steel sand finished product, and then is expired 10 gap filling of micropore using sealing medium；And tempering temperature be set as 150~
460 DEG C, tempering time is 1~2 hour, and then tempering temperature is preferably arranged to 300 DEG C, and it is small that tempering time is preferably arranged to 1.5
When；
S9: by the steel sand of impermeable seal, by nature, (room temperature, cooling or heating means consolidate the sealing medium in micropore 10
Change, has the function that sealing；
S10: steel sand finished product accurately classify to steel sand finished product by fine screen point；The sieve of the fine screen of S10 point
It is one such that point method is set as hydrometer method, vibration screening or imaging screening, convenient for accurately choose qualified steel sand at
Product；
S11: the steel sand finished product after screening is formed into a kind of metal guarantor in steel sand finished surface by electrostatic painting process
Protect film；
S12: the steel sand finished product with metal coating film protective coating 11 is subjected to the cooling steel sand ontology for obtaining qualification
1, and steel sand ontology 1 is subjected to storage packaging factory.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (9)
1. a kind of novel steel sand, including steel sand ontology (1), penetrant (101) and protective coating (11), which is characterized in that described
Steel sand ontology (1) is made of alloy material and waste material steel material, and the steel sand ontology being made of alloy material and waste material steel material
(1) it is provided with micropore (10), is provided with penetrant (101) in the micropore (10), steel sand ontology (1) periphery is provided in
Protective coating (11).
2. a kind of novel steel sand according to claim 1 and its production method, which is characterized in that the steel sand ontology (1)
Corner angle or one such with spherical cambered surface are provided with, and the specific gravity between scrap steel and alloy material is set as 0.8:0.2.
3. a kind of novel steel sand according to claim 1 and its production method, which is characterized in that the penetrant (101)
It is set as the sealing medium that water, oil, salting liquid, organic resin be one such or a variety of low-viscosity (mobile) liquid materials are constituted.
4. a kind of novel steel sand according to claim 1 and its production method, which is characterized in that the protective coating (11)
A kind of metal coating film is formed on steel sand ontology (1) surface by electrostatic painting process.
5. a kind of novel steel sand according to claim 4 and its production method, which is characterized in that the metal coating film
It is one such to be set as zinc, chromium, nickel, titanium, silver-colored material.
6. a kind of novel steel sand according to claim 5 and its production method, which is characterized in that metal described in chromium material
Protective film is set as plating hard chrome or decorative chromium plating is one such.
7. a kind of as follows based on a kind of production method of novel steel sand described in claim 1:
S1: through electro-smelting and the alloy material of rational proportion is added in scrap steel, until meeting chemical component；
S2: the molten steel for meeting chemical component be granulated through centrifugal process and then be obtained blank steel material；
S3: blank steel material is subjected to drying for the first time and then is evaporated the excessive moisture in blank steel material；
S4: immediate quenching processing is carried out into the water when blank steel material temperature is down to 800~980 DEG C；
S5: second of drying is carried out to the evaporation of moisture, and blank steel material is put into crusher for the blank steel material of quenching treatment
It is broken into steel sand semi-finished product；
S6: steel sand semi-finished product coarse sizing is subjected to preliminary screening and is chosen；
S7: the qualified steel sand semi-finished product tentatively chosen are subjected to tempering and then obtain qualified steel sand finished product；
S8: by the steel sand finished product of tempering by by sealing medium through naturally osmotic, the method that vacuumizes and pressurize penetrate into steel
In the micropore (10) of sand finished product, so it is using sealing medium that micropore (10) gap filling is full；
S9: the steel sand of impermeable seal is solid by the inner sealing medium of micropore (10) by nature (room temperature), cooling or heating means
Change, has the function that sealing；
S10: steel sand finished product accurately classify to steel sand finished product by fine screen point；
S11: it is thin that the steel sand finished product after screening by electrostatic painting process is formed into a kind of metal coating in steel sand finished surface
Film；
S12: the steel sand finished product with metal coating film protective coating (11) is subjected to the cooling steel sand ontology for obtaining qualification
(1), and by steel sand ontology (1) storage packaging factory is carried out.
8. a kind of novel steel sand according to claim 7 and its production method, which is characterized in that the centrifugation in S2
Method is set as centrifuge centrifugal process or spinning cone atemization is one such, and cooling medium is water, and water temperature is set as
35℃-40℃。
9. a kind of novel steel sand according to claim 7 and its production method, which is characterized in that the fine screen in S10 divided
It is one such that method for sieving is set as hydrometer method, vibration screening or imaging screening.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810937377.8A CN109015417A (en) | 2018-08-16 | 2018-08-16 | A kind of novel steel sand and its production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810937377.8A CN109015417A (en) | 2018-08-16 | 2018-08-16 | A kind of novel steel sand and its production method |
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| CN109015417A true CN109015417A (en) | 2018-12-18 |
Family
ID=64631857
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| CN201810937377.8A Withdrawn CN109015417A (en) | 2018-08-16 | 2018-08-16 | A kind of novel steel sand and its production method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647370A (en) * | 2022-10-24 | 2023-01-31 | 武汉鸿鑫立信金属制品有限公司 | Preparation process and application of bearing steel grit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101108A (en) * | 1986-09-15 | 1988-09-14 | 双磨料国际有限公司 | Flexible abrasives |
| CN1396004A (en) * | 2002-05-13 | 2003-02-12 | 丁世普 | Process for extracting steel particles or sand from iron mud generated in smelting steel |
| CN101468396A (en) * | 2007-12-29 | 2009-07-01 | 林天来 | Method for producing alloyed steel sand |
| CN105778861A (en) * | 2014-12-24 | 2016-07-20 | 深圳富泰宏精密工业有限公司 | Elastic abrasive particle and manufacturing method thereof |
-
2018
- 2018-08-16 CN CN201810937377.8A patent/CN109015417A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101108A (en) * | 1986-09-15 | 1988-09-14 | 双磨料国际有限公司 | Flexible abrasives |
| CN1396004A (en) * | 2002-05-13 | 2003-02-12 | 丁世普 | Process for extracting steel particles or sand from iron mud generated in smelting steel |
| CN101468396A (en) * | 2007-12-29 | 2009-07-01 | 林天来 | Method for producing alloyed steel sand |
| CN105778861A (en) * | 2014-12-24 | 2016-07-20 | 深圳富泰宏精密工业有限公司 | Elastic abrasive particle and manufacturing method thereof |
| TW201632604A (en) * | 2014-12-24 | 2016-09-16 | 富智康（香港）有限公司 | Elastic abrasive grain and method for manufacturing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647370A (en) * | 2022-10-24 | 2023-01-31 | 武汉鸿鑫立信金属制品有限公司 | Preparation process and application of bearing steel grit |
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Application publication date: 20181218 |