CN107779723A - A kind of nickel-saving type stainless steel cooking stove and its manufacture method - Google Patents
A kind of nickel-saving type stainless steel cooking stove and its manufacture method Download PDFInfo
- Publication number
- CN107779723A CN107779723A CN201610712364.1A CN201610712364A CN107779723A CN 107779723 A CN107779723 A CN 107779723A CN 201610712364 A CN201610712364 A CN 201610712364A CN 107779723 A CN107779723 A CN 107779723A
- Authority
- CN
- China
- Prior art keywords
- nickel
- stainless steel
- saving type
- cooking stove
- manufacture method
- 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
- 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
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
-
- 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
- C22C38/54—Ferrous alloys, e.g. steel alloys containing chromium with nickel with boron
-
- 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)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a kind of nickel-saving type stainless steel cooking stove and its manufacture method, there is provided a kind of nickel-saving type stainless steel cooking stove, its chemical composition are by weight percentage：C≤0.20%, 0.45% ＜ Si ＜ 1.4%, 7.0≤Mn≤9.5%, 13.50%≤Cr≤16.00%, 3.0%≤Ni ＜ 4.00%, 0.18% ＜ N≤0.25%, 1.00% ＜ Cu≤2.50%, P ＜ 0.080%, 20 × 10 4%≤B≤40 × 10 4%, 20 × 10 4%≤Ca≤100 × 10 4%, S ＜ 0.010%, surplus is Fe and inevitable impurity, the present invention greatly reduces production cost, effectively avoid peeling, the surface quality defects such as sand holes, the application field of nickel-saving type austenitic stainless steel is further widened.
Description
Technical field
The invention belongs to casting technology field, and in particular to a kind of nickel-saving type stainless steel cooking stove and its manufacture method.
Background technology
Nickel is a kind of scarce resource, and particularly in China, the amount of verifying of nickel resources only accounts for the 5.9% of the whole world, with recent years
Come, the rapid development of China's stainless steel industry, the demand of nickel also increasingly surges, it is estimated that the metallic nickel demand in China in 2015
Amount will be up to 3,000,000 tons.Put into effect with the restrictive policy of nickel minerals leading exporter, increasing stainless steel producer more pays close attention to section nickel
The development of type stainless steel.
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 save nickel
Type stainless steel cooking stove and its manufacture method, overcome poor traditional nickel-saving type stainless steel corrosion resistance, cold-forming property and lumber recovery deficiency
The problem of.
A kind of nickel-saving type stainless steel cooking stove provided by the invention and its manufacture method, comprise the following steps：
1) use nickel-contained pig iron for base-material and add high carbon ferro-chrome in the ratio of 300-400kg/t steel, in electric furnace smelting stainless steel
Mother liquor, and by GOR converter smeltings, in GOR smelting processes, first the manganese alloy of addition is toasted, manganese alloy baking temperature
Spend for 250-400 DEG C, baking time is controlled in 220-360min；The quality for adding manganese alloy is 9-11kg steel；
2）LF stoves refine to obtain molten steel, and its composition is by mass percentage：C≤0.20%, 0.45% ＜ Si ＜ 1.4%, 7.0≤Mn
≤ 9.5%, 13.50%≤Cr≤16.00%, 3.0%≤Ni ＜ 4.00%, 0.18% ＜ N≤0.25%, 1.00% ＜ Cu≤
2.50%th, P ＜ 0.080%, 20 × 10-4%≤B≤40 × 10-4%, 20 × 10-4%≤Ca≤100 × 10-4%, S ＜
0.010%, surplus is Fe and inevitable impurity, using ferro-boron microalloying, make the B content in molten steel control 40~
50ppm, Ca content are controlled in 50~70ppm；
3）Continuous casting, pouring basket liquid level ensure in 800~1000mm；
4）Continuous casting billet is first heated, then hot rolling obtains hot-rolled black-skin volume, and casting skin volume moves back pickling, cold rolling, cold annealing and pickling through overheat
It is and smooth.
A kind of nickel-saving type stainless steel cooking stove provided by the invention and its manufacture method, its advantage are, in tradition with manganese, nitrogen
On the basis of precious metal nickel, by rational design of alloy, single austenite structure is ensure that, to ensure material
Material has excellent hot-working and cold-forming property, avoids producing side and the mass defect such as splits, peels, passes through B alloying, raising
The processing characteristics of material.Inclusion modification is made by Ca processing, using alloy baking system, soft blow and calm time are combined
The degree of purity of molten steel is improved Deng technological measure, strip is avoided and occurs the surfaces such as peeling, sand holes in the subsequent handlings such as cold rolling
Defect, improve lumber recovery.
Embodiment
With reference to one embodiment, a kind of nickel-saving type stainless steel cooking stove provided by the invention and its manufacture method are carried out
Detailed description.
Embodiment
A kind of nickel-saving type stainless steel cooking stove and its manufacture method of the present embodiment, comprise the following steps：
1) use nickel-contained pig iron for base-material and add high carbon ferro-chrome in the ratio of 350kg/t steel, in smelting mother liquor of stainless steel from electric furnace,
And by GOR converter smeltings, in GOR smelting processes, first the manganese alloy of addition is toasted, manganese alloy baking temperature is
280 DEG C, baking time is controlled in 260min；The quality for adding manganese alloy is 11kg steel；
2）LF stoves refine to obtain molten steel, and its composition is by mass percentage：C=0.20%, Si=1.2%, Mn=9.5% ,=16.00%,
Ni=4.00%, N=0.25%, Cu=2.50%, P=0.070%, B=40 × 10-4%, Ca=100 × 10-4%, S=0.003%,
Surplus is Fe and inevitable impurity, using ferro-boron microalloying, the B content in molten steel is controlled in 50ppm, the control of Ca contents
In 70ppm；
3）Continuous casting, pouring basket liquid level ensure in 1000mm；
4）Continuous casting billet is first heated, then hot rolling obtains hot-rolled black-skin volume, and casting skin volume moves back pickling, cold rolling, cold annealing and pickling through overheat
It is and smooth.
Claims (1)
1. a kind of nickel-saving type stainless steel cooking stove and its manufacture method, it is characterised in that：Comprise the following steps：
1) use nickel-contained pig iron for base-material and add high carbon ferro-chrome in the ratio of 300-400kg/t steel, in electric furnace smelting stainless steel
Mother liquor, and by GOR converter smeltings, in GOR smelting processes, first the manganese alloy of addition is toasted, manganese alloy baking temperature
Spend for 250-400 DEG C, baking time is controlled in 220-360min；The quality for adding manganese alloy is 9-11kg steel；
2）LF stoves refine to obtain molten steel, and its composition is by mass percentage：C≤0.20%, 0.45% ＜ Si ＜ 1.4%, 7.0≤Mn
≤ 9.5%, 13.50%≤Cr≤16.00%, 3.0%≤Ni ＜ 4.00%, 0.18% ＜ N≤0.25%, 1.00% ＜ Cu≤
2.50%th, P ＜ 0.080%, 20 × 10-4%≤B≤40 × 10-4%, 20 × 10-4%≤Ca≤100 × 10-4%, S ＜
0.010%, surplus is Fe and inevitable impurity, using ferro-boron microalloying, make the B content in molten steel control 40~
50ppm, Ca content are controlled in 50~70ppm；
3）Continuous casting, pouring basket liquid level ensure in 800~1000mm；
4）Continuous casting billet is first heated, then hot rolling obtains hot-rolled black-skin volume, and casting skin volume moves back pickling, cold rolling, cold annealing and pickling through overheat
It is and smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712364.1A CN107779723A (en) | 2016-08-24 | 2016-08-24 | A kind of nickel-saving type stainless steel cooking stove and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610712364.1A CN107779723A (en) | 2016-08-24 | 2016-08-24 | A kind of nickel-saving type stainless steel cooking stove and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107779723A true CN107779723A (en) | 2018-03-09 |
Family
ID=61387982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610712364.1A Pending CN107779723A (en) | 2016-08-24 | 2016-08-24 | A kind of nickel-saving type stainless steel cooking stove and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107779723A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114686784A (en) * | 2022-04-02 | 2022-07-01 | 四川罡宸不锈钢有限责任公司 | Nickel-saving austenitic stainless steel material and preparation method thereof |
-
2016
- 2016-08-24 CN CN201610712364.1A patent/CN107779723A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114686784A (en) * | 2022-04-02 | 2022-07-01 | 四川罡宸不锈钢有限责任公司 | Nickel-saving austenitic stainless steel material and preparation method thereof |
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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 |