CN112589061A - Same-tray pouring process of special-shaped ingot and special-shaped ingot - Google Patents
Same-tray pouring process of special-shaped ingot and special-shaped ingot Download PDFInfo
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- CN112589061A CN112589061A CN202011473366.2A CN202011473366A CN112589061A CN 112589061 A CN112589061 A CN 112589061A CN 202011473366 A CN202011473366 A CN 202011473366A CN 112589061 A CN112589061 A CN 112589061A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
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Abstract
The invention is suitable for the technical field of steel ingot processing, and provides a same-tray pouring process of a special-shaped ingot and the special-shaped ingot, wherein the same-tray pouring process of the special-shaped ingot comprises the following steps: designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height; respectively melting at least two steel ingots with different weight specifications to obtain at least two molten steels; and placing at least two molten steels in the same disc for pouring to obtain the special-shaped ingot. According to the one-tray casting process provided by the embodiment of the invention, 2 or more steel ingots with different specifications are cast in the same tray by designing the specific ingot type and matching the weight with the height, so that the consumption of refractory materials can be reduced, the residual steel amount is reduced, the product quality is improved, the quality is superior to that of a multi-tray cast steel ingot, the labor intensity of bottom plate masonry and casting workers is reduced, and the direct production cost is reduced.
Description
Technical Field
The invention belongs to the technical field of steel ingot processing, and particularly relates to a same-tray pouring process of a special-shaped ingot and the special-shaped ingot.
Background
The special-shaped ingots, namely steel ingots with different specifications and different weights, are usually subjected to split-disc casting, so that a casting base plate is occupied, a middle casting pipe is added, and the consumption of corresponding refractory materials and the consumption of residual steel are increased.
In addition, in order to meet the requirements of small and medium-sized orders, the small-sized (batch) orders of a furnace of steel are not enough, and production cannot be arranged. In order to meet the requirements of customers, the production can only be matched with other specifications to prepare a spare warehouse, and the capital is overstocked. Because of matching with other specifications, more than 2 specifications of one furnace steel occupy the floor (flat plate) resource of 2 furnaces of steel on site, and the production is reduced. In addition, two-tray casting of two specifications can ensure smooth production only by increasing the process temperature. The energy consumption and the auxiliary material consumption are increased.
Disclosure of Invention
The embodiment of the invention aims to provide a same-tray pouring process of a special-shaped ingot, and aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that the same-tray pouring process of the special-shaped ingot comprises the following steps:
designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height;
respectively melting at least two steel ingots with different weight specifications to obtain at least two molten steels;
and placing at least two molten steels in the same disc for pouring to obtain the special-shaped ingot.
As a preferable scheme of the embodiment of the invention, the steel ingot comprises the following components in percentage by mass: 0.35-0.4% of C, 0.25-0.4% of Si, 0.45-0.65% of Mn, 0.03-0.08% of V, 0.0008-0.004% of Ca, 0.001-0.005% of S, 0.001-0.025% of P, 13-14.5% of Cr and the balance of Fe, wherein the sum of the mass percentages of the components is 100%.
As another preferable scheme of the embodiment of the invention, the steel ingot comprises the following components in percentage by mass: 0.36-0.38% of C, 0.3-0.35% of Si, 0.5-0.6% of Mn, 0.05-0.06% of V, 0.002-0.003% of Ca, 0.002-0.004% of S, 0.01-0.02% of P, 13.5-14% of Cr and the balance of Fe, wherein the sum of the mass percentages of the components is 100%.
As another preferable scheme of the embodiment of the invention, the steel ingot comprises the following components in percentage by mass: 0.37 percent of C, 0.32 percent of Si, 0.55 percent of Mn, 0.055 percent of V, 0.0025 percent of Ca, 0.003 percent of S, 0.05 percent of P, 13.8 percent of Cr and the balance of Fe, wherein the sum of the mass percent of the components is 100 percent.
In another preferable embodiment of the present invention, in the step, the temperature of the melting treatment is 1900 to 2000 ℃.
As another preferable scheme of the embodiment of the invention, in the step, the casting temperature is 1700-1800 ℃.
As another preferable scheme of the embodiment of the invention, in the step, the casting speed is 1-5 t/min.
Another object of the embodiment of the present invention is to provide a special-shaped ingot processed by the above same-tray pouring process.
According to the same-tray pouring process of the special-shaped ingot, the specific ingot type is designed, the weight is matched with the height, 2 or more specifications of steel ingots are poured in the same tray, the consumption of refractory materials can be reduced, the residual steel amount is reduced, the product quality is improved, the quality is superior to that of a multi-tray pouring steel ingot, the labor intensity of bottom plate masonry and pouring workers is reduced, and the direct production cost is reduced by 30-50 yuan/ton. Compared with the prior art, the invention has the following advantages:
1. can meet the requirements of medium and small-sized orders.
2. The utilization rate of the ingot disc in the casting field is improved, and the production efficiency is improved.
3. The production cost is reduced.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.35% of C, 0.25% of Si, 0.45% of Mn, 0.03% of V, 0.0008% of Ca, 0.001% of S, 0.001% of P, 13% of Cr and 85.9182% of Fe.
And S2, taking two steel ingots with different weight specifications, and respectively carrying out melting treatment at 1900 ℃ to obtain two molten steels.
And S3, immediately placing the two molten steels in the same disc, and pouring at the temperature of 1700 ℃ and the pouring speed of 1t/min to obtain the special-shaped ingot.
Example 2
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.4% of C, 0.4% of Si, 0.65% of Mn, 0.08% of V, 0.004% of Ca, 0.005% of S, 0.025% of P, 14.5% of Cr and 83.936% of Fe.
And S2, taking two steel ingots with different weight specifications, and respectively carrying out melting treatment at 2000 ℃ to obtain two molten steels.
And S3, immediately placing the two molten steels in the same disc, and pouring at the temperature of 1800 ℃ and the pouring speed of 5t/min to obtain the special-shaped ingot.
Example 3
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.36% of C, 0.26% of Si, 0.48% of Mn, 0.04% of V, 0.001% of Ca, 0.002% of S, 0.005% of P, 13.2% of Cr and 85.652% of Fe.
And S2, taking two steel ingots with different weight specifications, and respectively carrying out melting treatment at 1920 ℃ to obtain two molten steels.
And S3, immediately placing the two molten steels in the same disc, and pouring at the temperature of 1720 ℃ and the pouring speed of 2t/min to obtain the special-shaped ingot.
Example 4
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.39% of C, 0.38% of Si, 0.62% of Mn, 0.07% of V, 0.003% of Ca, 0.004% of S, 0.023% of P, 14.2% of Cr and 84.31% of Fe.
And S2, respectively melting three steel ingots with different weight specifications at the temperature of 1980 ℃ to obtain three molten steels.
And S3, immediately placing the three molten steel in the same disc, and pouring at the temperature of 1780 ℃ and the pouring speed of 4t/min to obtain the special-shaped ingot.
Example 5
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.36% of C, 0.3% of Si, 0.5% of Mn, 0.05% of V, 0.002% of Ca, 0.002% of S, 0.01% of P, 13.5% of Cr and 85.276% of Fe.
And S2, placing two steel ingots with different weight specifications at 1950 ℃ for melting treatment respectively to obtain two molten steels.
And S3, immediately placing the two molten steels in the same pan, and pouring at the temperature of 1750 ℃ and the pouring speed of 3t/min to obtain the special-shaped ingot.
Example 6
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.38% of C, 0.35% of Si, 0.6% of Mn, 0.06% of V, 0.003% of Ca, 0.004% of S, 0.02% of P, 14% of Cr and 84.583% of Fe.
And S2, placing two steel ingots with different weight specifications at 1950 ℃ for melting treatment respectively to obtain two molten steels.
And S3, immediately placing the two molten steels in the same pan, and pouring at the temperature of 1750 ℃ and the pouring speed of 3t/min to obtain the special-shaped ingot.
Example 7
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.365% of C, 0.32% of Si, 0.5% of Mn, 0.05% of V, 0.002% of Ca, 0.002% of S, 0.01% of P, 13.7% of Cr and 85.051% of Fe.
And S2, placing two steel ingots with different weight specifications at 1950 ℃ for melting treatment respectively to obtain two molten steels.
And S3, immediately placing the two molten steels in the same pan, and pouring at the temperature of 1750 ℃ and the pouring speed of 3t/min to obtain the special-shaped ingot.
Example 8
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.375% of C, 0.34% of Si, 0.5% of Mn, 0.06% of V, 0.003% of Ca, 0.004% of S, 0.015% of P, 13.6% of Cr and 85.103% of Fe.
And S2, taking two steel ingots with different weight specifications, and respectively melting at the temperature of 1980 ℃ to obtain two molten steels.
And S3, immediately placing the two molten steels in the same disc, and pouring at the temperature of 1780 ℃ and the pouring speed of 4t/min to obtain the special-shaped ingot.
Example 9
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.36% of C, 0.3% of Si, 0.55% of Mn, 0.055% of V, 0.0025% of Ca, 0.003% of S, 0.015% of P, 13.6% of Cr and 85.1145% of Fe.
And S2, placing two steel ingots with different weight specifications at 1950 ℃ for melting treatment respectively to obtain two molten steels.
And S3, immediately placing the two molten steels in the same pan, and pouring at the temperature of 1750 ℃ and the pouring speed of 3t/min to obtain the special-shaped ingot.
Example 10
The embodiment provides a same-tray pouring process of a special-shaped ingot, which comprises the following steps:
s1, designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height. The steel ingot comprises the following components in percentage by mass: 0.37% of C, 0.32% of Si, 0.55% of Mn, 0.055% of V, 0.0025% of Ca, 0.003% of S, 0.05% of P, 13.8% of Cr and 84.8495% of Fe.
And S2, placing two steel ingots with different weight specifications at 1950 ℃ for melting treatment respectively to obtain two molten steels.
And S3, immediately placing the two molten steels in the same pan, and pouring at the temperature of 1750 ℃ and the pouring speed of 3t/min to obtain the special-shaped ingot.
According to the embodiment of the invention, through designing the specific ingot type and matching the weight and the height, 2 or more specifications of steel ingots are cast in the same tray, so that the consumption of refractory materials can be reduced, the residual steel amount is reduced, the product quality is improved, the quality is superior to that of a multi-tray cast steel ingot, the labor intensity of bottom plate masonry and casting workers is reduced, and the direct production cost is reduced by 30-50 yuan/ton.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The same-tray pouring process of the special-shaped ingot is characterized by comprising the following steps of:
designing ingot moulds with different tonnage specifications, and producing steel ingots with different weight specifications at the same height;
respectively melting at least two steel ingots with different weight specifications to obtain at least two molten steels;
and placing at least two molten steels in the same disc for pouring to obtain the special-shaped ingot.
2. The same-tray pouring process of a special-shaped ingot according to claim 1, wherein the ingot comprises the following components in percentage by mass: 0.35-0.4% of C, 0.25-0.4% of Si, 0.45-0.65% of Mn, 0.03-0.08% of V, 0.0008-0.004% of Ca, 0.001-0.005% of S, 0.001-0.025% of P, 13-14.5% of Cr and the balance of Fe, wherein the sum of the mass percentages of the components is 100%.
3. The same-tray pouring process of a special-shaped ingot according to claim 1, wherein the ingot comprises the following components in percentage by mass: 0.36-0.38% of C, 0.3-0.35% of Si, 0.5-0.6% of Mn, 0.05-0.06% of V, 0.002-0.003% of Ca, 0.002-0.004% of S, 0.01-0.02% of P, 13.5-14% of Cr and the balance of Fe, wherein the sum of the mass percentages of the components is 100%.
4. The same-tray pouring process of a special-shaped ingot according to claim 2 or 3, wherein the ingot comprises the following components in percentage by mass: 0.37 percent of C, 0.32 percent of Si, 0.55 percent of Mn, 0.055 percent of V, 0.0025 percent of Ca, 0.003 percent of S, 0.05 percent of P, 13.8 percent of Cr and the balance of Fe, wherein the sum of the mass percent of the components is 100 percent.
5. The same-tray pouring process of a special-shaped ingot according to claim 1, wherein in the step, the temperature of the melting treatment is 1900-2000 ℃.
6. The same-tray pouring process of a special-shaped ingot according to claim 1, wherein in the step, the pouring temperature is 1700-1800 ℃.
7. The same-tray pouring process of a special-shaped ingot according to claim 1, wherein in the step, the pouring speed is 1-5 t/min.
8. A special-shaped ingot processed by the same-tray pouring process according to any one of claims 1 to 7.
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| CN202011473366.2A CN112589061A (en) | 2020-12-15 | 2020-12-15 | Same-tray pouring process of special-shaped ingot and special-shaped ingot |
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| CN202011473366.2A CN112589061A (en) | 2020-12-15 | 2020-12-15 | Same-tray pouring process of special-shaped ingot and special-shaped ingot |
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| JPS5586649A (en) * | 1978-12-26 | 1980-06-30 | Daido Steel Co Ltd | Ingot making machine |
| CN202715792U (en) * | 2012-05-15 | 2013-02-06 | 奚来凤 | Die casting structure for producing steel ingots in different specifications |
| CN103317106A (en) * | 2012-03-19 | 2013-09-25 | 宝山钢铁股份有限公司 | Method and device for improving casting quality of large steel ingots |
| CN104070145A (en) * | 2014-06-19 | 2014-10-01 | 中国科学院金属研究所 | Manufacturing tooling and efficient production method of large height-diameter ratio circular casting billet |
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-
2020
- 2020-12-15 CN CN202011473366.2A patent/CN112589061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3501125A (en) * | 1966-05-27 | 1970-03-17 | Bofors Ab | Multiple chill mold device |
| JPS5586649A (en) * | 1978-12-26 | 1980-06-30 | Daido Steel Co Ltd | Ingot making machine |
| CN103317106A (en) * | 2012-03-19 | 2013-09-25 | 宝山钢铁股份有限公司 | Method and device for improving casting quality of large steel ingots |
| CN202715792U (en) * | 2012-05-15 | 2013-02-06 | 奚来凤 | Die casting structure for producing steel ingots in different specifications |
| CN104070145A (en) * | 2014-06-19 | 2014-10-01 | 中国科学院金属研究所 | Manufacturing tooling and efficient production method of large height-diameter ratio circular casting billet |
| CN106994500A (en) * | 2017-05-12 | 2017-08-01 | 山东宝鼎重工实业有限公司 | A kind of many ingot casting devices of a disk and method |
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| 孙志敏等: "《铝及铝合金加工技术》", 31 December 2013 * |
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Application publication date: 20210402 |