CN103695595A - Production method of sublance composite probe guide tube for converter steelmaking - Google Patents
Production method of sublance composite probe guide tube for converter steelmaking Download PDFInfo
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- CN103695595A CN103695595A CN201310672615.4A CN201310672615A CN103695595A CN 103695595 A CN103695595 A CN 103695595A CN 201310672615 A CN201310672615 A CN 201310672615A CN 103695595 A CN103695595 A CN 103695595A
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Abstract
The invention discloses a production method of a sublance composite probe guide tube for converter steelmaking. The method comprises the following steps: crushing and drying wood shavings to obtain wood shavings grain powder; fully mixing the wood shavings grain powder with high-temperature waterproof glue and then transferring into a hot press to control the pressure of the hot press to be 15-20MPa; controlling the heating temperature at three stages to carry out hot press molding, controlling the first stage of temperature to be 119-121 DEG C, controlling the second stage of temperature to be 169-171 DEG C, and controlling the third stage of temperature to be 199-201 DEG C; cutting according to the length requirements of the product, so as to obtain the sublance composite probe guide tube. The production method has the advantages of availability in raw materials, low cost, simple production technology, high product strength, stable appearance, high molding rate, good heat insulation property, and no moisture absorption, is molded in a one-off hot pressing manner, and can meet the quality requirements of the sublance composite probe guide tube.
Description
Technical field
The present invention relates to the production method of sublance composite probe guide pipe for a kind of converter steelmaking.
Background technology
Along with the development of iron and steel cause, China has become world-class Chan Gang big country.During LD converter steelmaking, utilize sublance composite probe, can on-line measurement temperature, crystal fixed carbon, sampling and determine oxygen, thus reduced tap to tap time, improved the productivity of converter steelmaking, reduced production cost.
At present, guide pipe made of paper is generally used as sublance composite probe guide pipe, by technical requirements and the environment for use of sublance composite probe, limited by converter steelmaking, guide pipe made of paper must reach that intensity is high, thermal insulation good, dimensional stability, nonhygroscopic, therefore, all higher to the requirement of paper tube base paper quality and pipe rolling technique; In guide pipe production process made of paper, consume a large amount of magma papers, production cost is high, and guide pipe made of paper roll and storage process in, for meeting the requirement of sublance composite probe guide pipe, need to wax to body paper, the processing of increasing weight, but also must meet certain thickness, and this just rolls and brings very large difficulty to paper tube, and product production is difficult to meet the Production requirement of sublance composite probe.
Summary of the invention
It is simple that the technical problem to be solved in the present invention is to provide a kind of technique, and raw material is easy to get, with low cost, the production method of sublance composite probe guide pipe for a kind of converter steelmaking that product density is large, heat-proof quality is good.
Technical solution of the present invention is:
A production method for sublance composite probe guide pipe for converter steelmaking, its concrete steps are:
(1), raw material is processed
Wood dust is broken to wood pellet material that granularity is 5mm～10mm, 1mm～5mm and the wood chip powder of granularity < 1mm; According to parts by weight meter, the wood pellet material that the wood pellet material that is 5mm～10mm by 55 parts～65 parts granularities, 38 parts～42 parts granularities are 1mm～5mm and the wood chip powder of 8 parts～12 parts granularity < 1mm mix, at 80 ℃～90 ℃, dry 30min～45min, obtains wood pellet powder;
(2), applying glue
After wood pellet powder is fully mixed according to mass ratio 10:1～10:2 with high temperature waterproof glue, proceed in thermocompressor;
(3), hot-forming
Control thermocompressor pressure at 15MPa～20Mpa, Heating temperature divide three sections control carry out hot-forming, first paragraph temperature is controlled at 119 ℃～121 ℃, be 60min～70min heat-up time, second segment temperature is controlled at 169 ℃～171 ℃, be 90min～100min heat-up time, and the 3rd section of temperature is controlled at 199 ℃～201 ℃, and be 100min～150min heat-up time;
(4), essence is cut
According to product length, require to cut, obtain sublance composite probe guide pipe.
The present invention be take wood chip as raw material, is pulverized, fully dry, take high temperature waterproof glue as auxiliary material, carries out applying glue processing, then under certain temperature and pressure, carries out hot-forming.Its beneficial effect is:
(1) raw material is easy to get, and cost is inexpensive; Production technique is simple, once hot-forming, save energy, and product production can meet the Production requirement of sublance composite probe;
(2) product strength is high, dimensional stability, and ratio of briquetting is high, its bending strength>=9Mpa, ultimate compression strength>=41Mpa, density is 0.8g/cm
3, and thermal insulation is good, nonhygroscopic, thermal insulation≤10 ℃/cm, and 24 hours expansion rate of water absorption≤1%, can meet the specification of quality of sublance composite probe guide pipe.
Embodiment
Embodiment 1
(1), raw material is processed
With ring flaker, wood dust is broken to wood pellet material that granularity is 5mm～10mm, 1mm～5mm and the wood chip powder of granularity < 1mm; According to parts by weight meter, the wood pellet material that the wood pellet material that is 5mm～10mm by 60 parts of granularities, 40 parts of granularities are 1mm～5mm and the wood chip powder of 10 parts of granularity < 1mm mix, with roller dryer dry 30min at 85 ℃, obtain wood pellet powder;
(2), applying glue
With glue mixer by dry wood pellet powder after glue mixer fully mixes according to mass ratio 20:3 with high temperature waterproof glue, proceed in thermocompressor;
(3), hot-forming
Control thermocompressor pressure at 18Mpa, Heating temperature divide three sections control carry out hot-forming, first paragraph temperature is controlled at 119 ℃～121 ℃, be 60min heat-up time, second segment temperature is controlled at 169 ℃～171 ℃, be 90min heat-up time, and the 3rd section of temperature is controlled at 199 ℃～201 ℃, and be 100min heat-up time;
(4), essence is cut
Product cuts by 650 ± 0.2mm length, obtains sublance composite probe guide pipe.
Embodiment 2
(1), raw material is processed
With ring flaker, wood dust is broken to wood pellet material that granularity is 5mm～10mm, 1mm～5mm and the wood chip powder of granularity < 1mm; According to parts by weight meter, the wood pellet material that the wood pellet material that is 5mm～10mm by 55 parts of granularities, 42 parts of granularities are 1mm～5mm and the wood chip powder of 8 parts of granularity < 1mm mix, with roller dryer dry 45min at 80 ℃, obtain wood pellet powder;
(2), applying glue
With glue mixer, dry wood pellet powder is fully mixed according to mass ratio 10:1 with high temperature waterproof glue through glue mixer, proceed in thermocompressor;
(3), hot-forming
Control thermocompressor pressure at 15MPa, Heating temperature divide three sections control carry out hot-forming, first paragraph temperature is controlled at 119 ℃～121 ℃, be 70min heat-up time, second segment temperature is controlled at 169 ℃～171 ℃, be 100min heat-up time, and the 3rd section of temperature is controlled at 199 ℃～201 ℃, and be 150min heat-up time;
(4), essence is cut
Product cuts by 650 ± 0.2mm length, obtains sublance composite probe guide pipe.
Embodiment 3
(1), raw material is processed
With ring flaker, wood dust is broken to wood pellet material that granularity is 5mm～10mm, 1mm～5mm and the wood chip powder of granularity < 1mm; According to parts by weight meter, the wood pellet material that the wood pellet material that is 5mm～10mm by 65 parts of granularities, 38 parts of granularities are 1mm～5mm and the wood chip powder of 12 parts of granularity < 1mm mix, with roller dryer dry 30min at 90 ℃, obtain wood pellet powder;
(2), applying glue
With glue mixer, dry wood pellet powder is fully mixed according to mass ratio 10:1～10:2 with high temperature waterproof glue through glue mixer, proceed in thermocompressor;
(3), hot-forming
Control thermocompressor pressure at 20Mpa, Heating temperature divide three sections control carry out hot-forming, first paragraph temperature is controlled at 119 ℃～121 ℃, be 65min heat-up time, second segment temperature is controlled at 169 ℃～171 ℃, be 95min heat-up time, and the 3rd section of temperature is controlled at 199 ℃～201 ℃, and be 125min heat-up time;
(4), essence is cut
Product cuts by 650 ± 0.2mm length, obtains sublance composite probe guide pipe.
The index of the product of table 1 embodiment of the present invention 1～embodiment 3
| ? | Bending strength | Ultimate compression strength | Density | Thermal insulation | Expansion rate of water absorption |
| ? | Mpa | Mpa | g/cm 3 | ℃/cm | ％ |
| Embodiment 1 | 9.1 | 40.8 | 0.8 | 10.3 | 0.95 |
| Embodiment 2 | 8.7 | 39.6 | 0.8 | 10.1 | 0.93 |
| Embodiment 3 | 9.2 | 42.5 | 0.8 | 10.6 | 0.92 |
Claims (1)
1. a production method for sublance composite probe guide pipe for converter steelmaking, is characterized in that: concrete steps are as follows:
(1), raw material is processed
Wood dust is broken to wood pellet material that granularity is 5mm～10mm, 1mm～5mm and the wood chip powder of granularity < 1mm; According to parts by weight meter, the wood pellet material that the wood pellet material that is 5mm～10mm by 55 parts～65 parts granularities, 38 parts～42 parts granularities are 1mm～5mm and the wood chip powder of 8 parts～12 parts granularity < 1mm mix, at 80 ℃～90 ℃, dry 30min～45min, obtains wood pellet powder;
(2), applying glue
After wood pellet powder is fully mixed according to mass ratio 10:1～10:2 with high temperature waterproof glue, proceed in thermocompressor;
(3), hot-forming
Control thermocompressor pressure at 15MPa～20Mpa, Heating temperature divide three sections control carry out hot-forming, first paragraph temperature is controlled at 119 ℃～121 ℃, be 60min～70min heat-up time, second segment temperature is controlled at 169 ℃～171 ℃, be 90min～100min heat-up time, and the 3rd section of temperature is controlled at 199 ℃～201 ℃, and be 100min～150min heat-up time;
(4), essence is cut
According to product length, require to cut, obtain sublance composite probe guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672615.4A CN103695595A (en) | 2013-12-12 | 2013-12-12 | Production method of sublance composite probe guide tube for converter steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672615.4A CN103695595A (en) | 2013-12-12 | 2013-12-12 | Production method of sublance composite probe guide tube for converter steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103695595A true CN103695595A (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310672615.4A Pending CN103695595A (en) | 2013-12-12 | 2013-12-12 | Production method of sublance composite probe guide tube for converter steelmaking |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492268A (en) * | 1974-10-31 | 1977-11-16 | Electro Nite | Measuring or sampling head for connection to a lance |
| US5435196A (en) * | 1993-12-22 | 1995-07-25 | Heraeus Electro-Nite International N.V | Immersion probe for collecting slag samples |
| CN100375893C (en) * | 2003-12-17 | 2008-03-19 | 贺利氏耐特电子国际有限公司 | Carrier tube for sensors |
| CN201089774Y (en) * | 2007-07-24 | 2008-07-23 | 黄永进 | Composite probe for five-functional convertor auxiliary gun |
| CN102555020A (en) * | 2012-02-14 | 2012-07-11 | 岳明峰 | Production method of paper tube substitute |
-
2013
- 2013-12-12 CN CN201310672615.4A patent/CN103695595A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1492268A (en) * | 1974-10-31 | 1977-11-16 | Electro Nite | Measuring or sampling head for connection to a lance |
| US5435196A (en) * | 1993-12-22 | 1995-07-25 | Heraeus Electro-Nite International N.V | Immersion probe for collecting slag samples |
| CN100375893C (en) * | 2003-12-17 | 2008-03-19 | 贺利氏耐特电子国际有限公司 | Carrier tube for sensors |
| CN201089774Y (en) * | 2007-07-24 | 2008-07-23 | 黄永进 | Composite probe for five-functional convertor auxiliary gun |
| CN102555020A (en) * | 2012-02-14 | 2012-07-11 | 岳明峰 | Production method of paper tube substitute |
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Application publication date: 20140402 |