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中频感应炉精炼炉

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中频感应炉精炼炉

发布日期:2022-05-10 作者:宝鸡爱体育 电气自动化 点击:

国内外试制首创置业所采用中频感测器炉治炼技术水平,在冶炼不锈钢钢,特殊化规范钢时,可以使中频感测器炉由“化钢”转为为炼钢,使其质理指標高于目前为止的AOD,VOD,LF浓缩炉,VD涡流脱气炉的质理横向,是实使用在大中小行业炉型冶炼及锻造加工行业从而提高服务线质量理,避免废品回收的一注重路经,是种加盟少,无法快,低成本低,质理高的生育方式加工的制作加工,是种节省降耗的节能型生育方式加工的制作加工,是种吨流程步骤的生育方式加工的制作加工。本技術是凭借其他的钢种,其他的想要,其他的乙炔气凭借中频磁感应炉浓缩燃气管道安装整体的调控乙炔气用户流量,高于洗去夹渣物及O〗〖N〗〖H含量的或特殊的让需用脱碳及含氮钢时吹入离氮气增氧。

    爱体育 吹氩精粹的目的:感觉炉底吹氩精粹方式是在钢液预脱氧搞定,采样浅析补加和金料后,将高饱和度氩气经过进行安装在炉底的有毒气体外扩散器导出来钢液(只是会抗压,防震不要渗楼钢液)当氩气用气休扩散转移器,乳状液度较高,有较少持续增长转速的裂痕图片流。无数的的裂痕图片用钢液可以把O〗〖N〗〖H及夹杂着物带出钢液,而使起到治炼的反应。

   钢液内部人员每一家氩起泡就会一款 小的“真空泵室”在氩气起泡里不含有O〗〖N〗〖H的废气,也就说氩泡泡之中某些废气的分阻力相等零。

当分各种压力很高的氩导致气泡走过钢液时,呈水解工作状态有着的〖O〗〖N〗〖H〗和非融化状况具有的CO等均会电脑自动地加入氩泡泡内ও,并渐渐泡泡提高而冒泡溢出,关键在于实现脱气的作用,实现除去非塑料夹杂着物的作用。

   从201在一年10月初完成完成了中频炼制炉冶炼,炼制后钢的质纯纯度♑能大大大提供,炼制上下的夹杂着物比较比较突出降,固体占比能大大大可以减少,具体实施比较内容如下:

1、吹氩治炼剔除铅pb的作用

钢种

吹Ar min

专业前(%)

炼制后(%)

大幅度降低率(%)

40

20

0.0087

0.0016

80.4

AISI430

19

0.0300

0.008

78.2

2、吹氩专业去氢H的目的

钢种

吹Ar min

H分量

的不同/10-6

降底率(%)

精粹前(%)

治炼后(%)

40

20

12.0

2.8

75.9

AISI430

35

9.3

4.51

52.1

2GMN13

31

7.9

4.15

50.0

3、夹杂着物:

钢中非不锈钢掺杂物显微认定步骤GB10561-2005

业务

A

B

C

D

加硫物

空气非金属氧化物

硅酸盐

球状腐蚀物

熔炼前均

1.8级

1.7级

1.5级

2.1级

精练后最低值

0.55级

0.6三级

0.5级

0.67级

均匀调低%

69

62

67

68

本质测标基本无法工艺的要求:

4、氢纯度需小于1.0ppm,充分考虑磨具钢规定≦2.5ppm,其它的钢种≦3.0ppm。

5、养份量大于0.0050%。

6、对钢锭生产加工后,开展超声检查波判断均达到了(GB/T133515-1991)特殊规定。

7、对304等铝合金材质的精粹与铝合金材质的的机的性能相对:(GB/T328-2002)

1)抗拉能力标准:炼制钢前549.53Mpa 炼制后606.82Mpa提供57.29Mpa

2)妥协屈服强度:治炼钢前270Mpa 治炼后339.52Mpa改善69.52Mpa

3)主要力:精练钢前38.46pa 强化后49.10Mpa提升 10.64Mpa

本枝术方便使用于感应式炉及工频炉。吨座为0.5T-20T炉体。方便使用于

1、强碱MgO砂炉衬。2、弱碱性食物MgO+AI2O3炉衬。3、中性化刚玉AI2O3炉衬。

4、偏含酸性一般的中性AI2O3 + SiO2炉衬。5、酸碱性熔融石英砂炉衬。

本枝术不可能增强冶炼时,正因为精粹是在加完镍钢料꧋使用融化时候中使用精粹,以至于不可能延冶炼时,最终得以也不会可能增强能耗。

因钢液要经过制🥀作,使服务的品质严重不断提高。而投资成本有增添。每吨的钢数据同步增添8.23元。铝合金量的延长、废料的增多、总的了解代价还是要下降的。

 

Medium frequency induction furnace refining furnace

   The domestic development of the first use of medium frequency induction furnace refining technology, in the smelting of alloy steel, special requirements steel, the medium frequency induction furnace can be transformed from "chemical steel" to steelmaking, so that its quality indicators reach the current AOD, VOD, LF refining furnace, The quality level of VD vacuum degassing furnace is an important way for small and medium-sized furnace smelting and casting enterprises to improve quality and reduce waste. It is a production process with low investment, quick effect, low cost and high quality. It is a kind of production process. An environmentally friendly production process that saves energy and reduces consumption is a production process of a ton process.This technique is based on different steel types, different requirements, different gas refinery desired gas flow control systems for supplying gas through an intermediate frequency induction furnace, slag removal was reached andO〗〖N〗〖H content or special requirements Nitr🙈ogen is added to the decarburization and nitrogen-containing steel.

The principle of argon refining in intermediate frequency furnace: the argon refining process in the induction furnace bottom is completed in the pre-deoxidation of molten steel. After sampling and analysis, the high-purity argon gas is introduced into the molten steel through the gas diffuser installed at the bottom of the furnace. Will be ventilated will not seep the steel liquid) When argon gas passes through the gas diffuser, the dispersion is higher, and the bubble flow has a larger rising speed. Numerous bubbles passing through the molten steel will bring  O 〗 〖 N 〗 〖 H  and inclusions out of tꦕhe molten steel to achieve refin🍎ing.

Each argon bubble inside the molten steel is a small "vacuum chamber" containing no gas ofඣ 〖O〗〖N〗〖H〗 in the argon bubble, that is, the partial pressure of these gases in the argon bubble is equal to zero.

When the argon bubble with a high partial pressure passes through the molten steel, the presence of O in the dissolved state, [N], H, and t🍃he CO in the insoluble state, will automatically enter the argon bubble, and as the bubble rises. Spilling, in order to achieve the purpose of degassing, to achieve the🉐 purpose of removing non-metallic inclusions.

Since the 💖beginning of August 2011, the intermediate frequency refining furnace has been smelted. The purity of the steel after refining has been greatly improved. The contrast of inclusions before and after refining has been significantly reduꦆced, and the gas content has been greatly reduced. The specific comparison is as follows:

1. Effect of argon refining to remove lead  pb 

Steel grade

Blowing Ar min

Before refining ( %)

After refining ( %)

Reduction rate ( %)

40

20

0.0087

0.0016

80.4

AISI430

19

0.0300

0.008

78.2

2, the effect of argon refining to hydrogen  H 

Steel grade

Blowing Ar min

 H  content

Change/10-6

Reduction rate ( %)

Before refining ( %)

After refining ( %)

40

20

12.0

2.8

75.9

AISI430

35

9.3

4.51

52.1

2GMN13

31

7.9

4.15

50.0

3, inclusions:

Microscopic evaluation method for non-metallic in🔯clusions 🎃in steel GB10561-2005

project

A

B

C

D

Sulfide

Oxide

Silicate

Spherical oxide

Average before refining

Level 1.8

Level 1.7

Level 1.5

Level 2.1

Average after refining

Level 0.55

Level 0.64

Level 0.5

0.67 level

Average reduction by %

69

62

67

68

The actual measurement standaওrd fully meets the technical requirements:

4. The hydrogen content is less than 1.0ppꦐm, which meets the requirements of mold steel ≦2.5ppm, and other steel grades ≦3.0ppm.

5. The nutrient contenౠt is less than 0.0050%.

6. After the steel ingotಞ is processedꦰ, the ultrasonic testing has reached the secondary standard (GB/T133515-1991).

7. Comparison of mechanical properties of 304 stainꦛless steel refining and stainless steel: (GB/T328-2002)

1) Tensile strength: 549.53Mpa before refin🎃ing steel, 56.82Mp♛a after refining, increase 57.29Mpa

2) Yield ♒strength: 270Mpa before refining steel, 339.52Mpa after refining, 69.52Mpa

3)&nbs🌟p;Maximum force: 38.46pa before refining ste🔯el, 10.64Mpa after refining 49.10Mpa

The technology is app🎃lied to induction furnaces and power frequency furnaces. The tonnage is 0.5T-20T furnace body. Practical use

1. Alkaline MgO sand lining. 2. Weakly alkaline MgO+AI 2 O 3 furnace lining. 3. Neutral corundum AI 2 O 3 furnace lining.

4. Acidic neutral AI 2 O 3 + SiO2 furnace lini🍒ng. 5. Acidic quartz sand li🌜ning.

This technique does not increa﷽se the smelting time, because refining is performed during the melting process of the alloy material, so that the smelting time is not extended, and thus the power consumption is not increased.

Due to the refining of the molten steel, the quality of the product is significantly improved. And the cost has increased. Synchronous increase of 8.23 yuan per ton of steel. Thꦗe improvement of steel quality, the reduction of waste, and the overall cost are still re🐠duced.


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