CN101709367A - Manufacturing method of environmentally-friendly mixed steel grit - Google Patents
Manufacturing method of environmentally-friendly mixed steel grit Download PDFInfo
- Publication number
- CN101709367A CN101709367A CN200910185680A CN200910185680A CN101709367A CN 101709367 A CN101709367 A CN 101709367A CN 200910185680 A CN200910185680 A CN 200910185680A CN 200910185680 A CN200910185680 A CN 200910185680A CN 101709367 A CN101709367 A CN 101709367A
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- China
- Prior art keywords
- steel
- tempering
- screening
- stove
- steel grit
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- 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.)
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- 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
Abstract
The invention discloses a manufacturing method of environmentally-friendly mixed steel grit, belonging to the technical field of metal processing method. The invention aims to provide a steel grit manufacturing method which utilizes industrial surplus steel to directly manufacture steel grit and leads the product to have low cost, favourable quality and high recovery rate. The manufacturing method has the following technical key points: sorting and breaking waste surplus steel; quenching: performing quenching treatment on the broken surplus steel; screening after being discharged; soaking: performing water cracking treatment to a discharged semifinished product, soaking metal material at high temperature so as to produce differentiation fission, thus reducing the granularity of the semifinished product again, then screening, drying and breaking; tempering: sending a secondary screening steel grit finished product into a tempering furnace for tempering, and screening again to be separated into the acceptable products of various qualifications.
Description
Technical field:
The present invention relates to novel process, novel method that a kind of metal abrasives is made.Be that steel sand is made and working method.
Technical background:
Steel sand is a kind of metal abrasives, and the rust cleaning, the matt effect that are used for metal or nonmetallic surface are handled.
The steel sand manufacture craft of the existing domestic same industry is, heavy-duty waste steel (containing alloy part) is smelted into molten steel earlier, utilize centrifugal atomizing technology to water and cast out corresponding shot, after technologies such as super-dry, scalping, choosing circle, screening, quenching, tempering, manufacture the steel sand of all size again.This technology is owing to need configuration melting, casting operation.On choices of raw materials, have relatively high expectations, have shortcomings such as cost height, energy consumption are big, complex process; Simultaneously, in fusion process, be easy to generate waste water, waste gas, bring certain pollution to environment inevitably.
Summary of the invention:
In order to address the above problem, the objective of the invention is to utilize industrial surplus steel directly to make steel sand, make product have the advantages that cost is low, quality good, the rate of recovery is high, be a kind of steel sand working method of domestic original creation.
Technical solution of the present invention is achieved in that its operation steps:
1, will discard surplus steel letter sorting;
2, quench: the surplus steel of fragmentation is carried out quench treatment, the back screening of coming out of the stove;
3, immersion: the work in-process of coming out of the stove carry out the water crack processing, allow the metallic substance back of soak under high-temperature condition produce the differentiation fission, have reduced half-finished granularity once more, enter screening then, dry and fragmentation;
4, tempering: the steel sand finished product after the postsearch screening is sent into the tempering stove tempering,
5, fine screen sorting: the qualified product that promptly are separated into all size.
The invention has the beneficial effects as follows:
Melting technology, energy-saving and environmental protection have been omitted; Do raw material with surplus steel, can reduce cost and energy consumption little; With the product that surplus steel is made, have characteristics such as low-carbon (LC), good toughness, life-span length.
Embodiment:
Embodiment 1:
Step 1: the discarded surplus steel of metallurgy industry is sorted;
Step 2: massive phase dropped in the crusher the block surplus steel of even, about 1 millimeter of volume carry out fragmentation;
Step 3: the starting material that former process is transported are sent into quenching furnance and are carried out quench treatment, and furnace temperature rises to about 850 ℃, continue to come out of the stove in 60 minutes, carry out that thermal conditioning is handled, screening again;
Step 4: to sending into the tempering stove tempering through the steel sand finished product after the postsearch screening, Control for Kiln Temperature is carried out modified about 200 ℃, continues after 1 hour approximately;
Step 5: product is screened, be separated into the qualified product of all size.
Embodiment 2:
Step 1: the discarded surplus steel of metallurgy industry is sorted;
Step 2: will carry out fragmentation in the surplus steel input crusher;
Step 3: the work in-process that fragmentation is good carry out quench treatment, and furnace temperature rises to about 850 ℃;
Step 4: the work in-process that quench after coming out of the stove are handled through carrying out thermal conditioning after spraying water, and Control for Kiln Temperature continues after 1 hour about 200 ℃ approximately;
Step 5: the product after coming out of the stove carries out flash baking;
Step 6: the qualified product that the product separation after the screening become all size.
Claims (3)
1. the manufacture method of an environmental protection mixed steel grit is characterized in that operation steps:
1) will discard surplus steel letter sorting;
2) quench: the surplus steel of fragmentation is carried out quench treatment, the back screening of coming out of the stove;
3) immersion: the work in-process of coming out of the stove carry out the water crack processing, allow the metallic substance back of soak under high-temperature condition produce the differentiation fission, have reduced half-finished granularity once more, enter screening then, dry and fragmentation;
4) tempering: the steel sand finished product after the postsearch screening is sent into the tempering stove tempering.
2. the manufacture method of a kind of environmental protection mixed steel grit according to claim 1 is characterized in that: about quenching furnance temperature rise to 850 ℃, continue to come out of the stove in 60 minutes.
3. the manufacture method of a kind of environmental protection mixed steel grit according to claim 1 is characterized in that: the tempering stove temperature control is carried out modified about 200 ℃, continues after 1 hour approximately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910185680A CN101709367A (en) | 2009-11-26 | 2009-11-26 | Manufacturing method of environmentally-friendly mixed steel grit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910185680A CN101709367A (en) | 2009-11-26 | 2009-11-26 | Manufacturing method of environmentally-friendly mixed steel grit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101709367A true CN101709367A (en) | 2010-05-19 |
Family
ID=42402173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910185680A Pending CN101709367A (en) | 2009-11-26 | 2009-11-26 | Manufacturing method of environmentally-friendly mixed steel grit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101709367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133643A (en) * | 2011-05-09 | 2011-07-27 | 山东众惠金属制品有限公司 | Steel grit produced by waste steel wires and production method thereof |
| CN107350476A (en) * | 2017-07-17 | 2017-11-17 | 马玉全 | A kind of steel sand preparation method |
-
2009
- 2009-11-26 CN CN200910185680A patent/CN101709367A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133643A (en) * | 2011-05-09 | 2011-07-27 | 山东众惠金属制品有限公司 | Steel grit produced by waste steel wires and production method thereof |
| CN107350476A (en) * | 2017-07-17 | 2017-11-17 | 马玉全 | A kind of steel sand preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100519 |