CN107779724A - A kind of Steel for enamel preparation method for grate - Google Patents
A kind of Steel for enamel preparation method for grate Download PDFInfo
- Publication number
- CN107779724A CN107779724A CN201610726343.5A CN201610726343A CN107779724A CN 107779724 A CN107779724 A CN 107779724A CN 201610726343 A CN201610726343 A CN 201610726343A CN 107779724 A CN107779724 A CN 107779724A
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- CN
- China
- Prior art keywords
- steel
- enamel
- rolling
- grate
- temperature
- 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.)
- Pending
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Classifications
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0426—Hot rolling
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
Abstract
The invention discloses a kind of Steel for enamel preparation method for grate, preparation technology rolls into hot rolled plate including desulfurizing iron, converter top bottom blowing, Argon processing, protective casting into slab, controlled rolling and controlled cooling.Improve the mechanical property such as tensile strength of steel, its yield strength >=320MPa, tensile strength (Rm) >=410MPa, elongation percentage (A) >=20%, the steel bases of the enamel products such as kitchen tools, sanitary ware, household electrical appliances can be widely used as.
Description
Technical field
The invention belongs to casting technology field, and in particular to a kind of Steel for enamel preparation method for grate.
Background technology
Steel for enamel tool has been widely used.Today in our lives usually in an oven using more and more, it is early
For the Steel for enamel of phase in order to ensure its cold formability and enamel property, carbon (C) content is hardly carbon containing typically below 0.01%
In its production technology, expensive microalloy element need to be added, decarburizing annealing is also carried out after hot rolling, cold-rolling treatment
Processing, the Steel for enamel produced not only low intensity (general yield strength≤200MPa), production process is more, the production cycle is long,
Production cost is high, and due to needing by annealing heat-treats, the intensity of existing Steel for enamel is relatively low, enamel adhesion property compared with
Difference, high temperature resistant enamel firing performance deficiency, it is limited by very large its application.
The content of the invention
In order to overcome above-mentioned technical problem existing for prior art, it is an object of the present invention to provide one kind to be used for
The Steel for enamel preparation method of grate, strengthen its tack, improve its performance.
A kind of Steel for enamel preparation method for grate provided by the invention, comprises the following steps：
1）Desulfurizing iron；
2）Converter top bottom blowing；
3）Argon processing；
4）Protective casting is into slab；
5）Controlled rolling and controlled cooling rolls into hot rolled plate：First by heating of plate blank to 1340-1380 DEG C, soaking 2-3 hours, roughing start rolling temperature is
1190-1280 DEG C, every time reduction ratio of roughing is 20-30%, and it is 80-90%, roughing end temp 1010- to add up reduction ratio
1030℃；Finish rolling again, finish rolling start rolling temperature are 900-990 DEG C, and last two percentage pass reduction is 12-20%, and finishing temperature is
800-890℃；Section cooling is used after rolling, cooling velocity is 15-25 DEG C/s, and coiling temperature is 580-620 DEG C, and enamel is made and uses
Steel.
A kind of Steel for enamel preparation method for grate provided by the invention, its advantage are, can use conventional
Method carry out application of slip operation, improve the mechanical properties such as the tensile strength of steel, its yield strength >=320MPa, tensile strength (Rm)
>=410MPa, elongation percentage (A) >=20%, the steel base of the enamel products such as kitchen tools, sanitary ware, household electrical appliances can be widely used as.
Embodiment
With reference to one embodiment, a kind of Steel for enamel preparation method for grate provided by the invention is carried out detailed
Thin explanation.
Embodiment
A kind of Steel for enamel preparation method for grate of the present embodiment, comprises the following steps：
1）Desulfurizing iron；
2）Converter top bottom blowing；
3）Argon processing；
4）Protective casting is into slab；
5）Controlled rolling and controlled cooling rolls into hot rolled plate：First by heating of plate blank to 1350 DEG C, soaking 3 hours, roughing start rolling temperature is 1190 DEG C,
Every time reduction ratio of roughing is 30%, and it is 80% to add up reduction ratio, and roughing end temp is 1010 DEG C；Finish rolling again, finish rolling open rolling
Temperature is 990 DEG C, and last two percentage pass reduction is 20%, and finishing temperature is 890 DEG C；Section cooling, cooling velocity are used after rolling
For 15 DEG C/s, coiling temperature is 620 DEG C, and Steel for enamel is made.
Claims (1)
- A kind of 1. Steel for enamel preparation method for grate, it is characterised in that：Comprise the following steps：1）Desulfurizing iron；2）Converter top bottom blowing；3）Argon processing；4）Protective casting is into slab；5）Controlled rolling and controlled cooling rolls into hot rolled plate：First by heating of plate blank to 1340-1380 DEG C, soaking 2-3 hours,Roughing start rolling temperature is 1190-1280 DEG C, and every time reduction ratio of roughing is 20-30%, and it is 80-90% to add up reduction ratio, Roughing end temp is 1010-1030 DEG C；Finish rolling again, finish rolling start rolling temperature are 900-990 DEG C, and last two percentage pass reduction is 12-20%, finishing temperature are 800-890 DEG C；Section cooling is used after rolling, cooling velocity is 15-25 DEG C/s, and coiling temperature is 580-620 DEG C, Steel for enamel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610726343.5A CN107779724A (en) | 2016-08-26 | 2016-08-26 | A kind of Steel for enamel preparation method for grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610726343.5A CN107779724A (en) | 2016-08-26 | 2016-08-26 | A kind of Steel for enamel preparation method for grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107779724A true CN107779724A (en) | 2018-03-09 |
Family
ID=61438873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610726343.5A Pending CN107779724A (en) | 2016-08-26 | 2016-08-26 | A kind of Steel for enamel preparation method for grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107779724A (en) |
-
2016
- 2016-08-26 CN CN201610726343.5A patent/CN107779724A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180309 |