CN101381235A - Low shrinking chromium-containing fabric blanket production process - Google Patents
Low shrinking chromium-containing fabric blanket production process Download PDFInfo
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- CN101381235A CN101381235A CNA2007100531674A CN200710053167A CN101381235A CN 101381235 A CN101381235 A CN 101381235A CN A2007100531674 A CNA2007100531674 A CN A2007100531674A CN 200710053167 A CN200710053167 A CN 200710053167A CN 101381235 A CN101381235 A CN 101381235A
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- containing chromium
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Abstract
The utility model provides a technology for producing a low-shrinkage fiber blanket containing chromium.The technology comprises the steps of batching, melting, throwing thread to form fiber, needling, thermal forming, rolling and packaging; the technology also comprises a step of a thermal contraction treatment technology that a fiber blanket containing chromium is formed by a thermal forming technology, and then the formed fiber blanket containing chromium is calcined for fifteen to forty minutes at the temperature of between 950 and 1,200 DEG C in a high temperature furnace. The step of the thermal contraction treatment technology can replace the step of the thermal forming technology, and has the advantage that during processing, preliminary thermal contraction treatment is performed on the fiber blanket containing chromium to keep the line contraction ratio of the fiber blanket containing chromium finished product lower than 1 percent at the temperature of 1,400 DEG for 24 hours, thereby effectively avoiding the insulation layer from producing cracks due to a larger contraction of the fiber blanket when being used and increasing the insulation effect greatly.
Description
Technical field
The present invention relates to the lightweight flame-proof thermal insulation material field.
Background technology
At present known contain the chromium tapetum fibrosum be with commercial alumina part, quartz sand, chromoxide green by certain proportion ingredient after, the light-weight refractory insulation fibre goods of making through resistance furnace fusion-get rid of silk (winding-up) one-tenth fibre-acupuncture-heat setting type-clot-package and production technique.Be mainly used in hot industry kiln fire resistant heat preserving, contain the stable performance under the condition of high temperature of chromium fiber, but linear shrinkage is bigger when using, 24 hours linear shrinkage ratio reaches more than 3.2% under 1400 ℃ of temperature.Too high linear shrinkage will cause thermal insulation layer to produce the crack, have a strong impact on heat insulation effect.
Summary of the invention
Purpose of the present invention be exactly a kind of low contraction is provided at containing the above-mentioned deficiency of chromium tapetum fibrosum at present contain the chromium fabric blanket production process, its production craft step comprises: batching, fusion, get rid of silk and become fibre, acupuncture, heat setting type, clot to pack; But it also has the thermal contraction treatment process steps, when containing the chromium tapetum fibrosum after heat setting process typing, will contain the chromium tapetum fibrosum under ℃ temperature of 950-1200 in High Temperature Furnaces Heating Apparatus pre-treatment 15-40 minute after the heat setting type.
The thermal contraction treatment process steps can replace the heat setting process step, can save original heat setting process step.
Advantage of the present invention is because in the course of processing, makes and has carried out the thermal contraction processing containing the chromium tapetum fibrosum in advance, makes to contain chromium tapetum fibrosum finished product linear shrinkage ratio under 1400 ℃ of conditions of 24 hours and be lower than 1%.Can avoid tapetum fibrosum that bigger contraction takes place in use effectively, cause thermal insulation layer to produce the crack, improve heat insulation effect greatly.
Embodiment
Embodiment 1:
One, batching:, make batch mixing with 38-44 part aluminum oxide and 52-55 part quartz sand and 15-4 part chromic oxide mixing;
Two, fusion: above-mentioned batch mixing is put into the resistance furnace fusion;
Three, get rid of silk and become fine: above-mentioned fused batch mixing is got rid of silk through tumbling machine become fiber;
Four, acupuncture: above-mentioned fiber is woven into tapetum fibrosum through needle loom with fiber acupuncture;
Five, heat setting type: above-mentioned tapetum fibrosum is put into the heat setting type stove under 700-800 ℃ of temperature, finalize the design;
Six, thermal contraction is handled: with the tapetum fibrosum after the heat setting type at 95-1200 ℃ of temperature lower calcination 15-40 minute;
Seven, the packing of the tapetum fibrosum clot after the above-mentioned calcining is finished product:
Embodiment 2: save original heat setting process step.
One, batching:, make batch mixing with 38-44 part aluminum oxide and 52-55 part quartz sand and 1.5-4 part chromic oxide mixing;
Two, fusion: above-mentioned batch mixing is put into the resistance furnace fusion;
Three, get rid of silk and become fine: above-mentioned fused batch mixing is got rid of silk through tumbling machine become fiber;
Four, acupuncture: above-mentioned fiber is woven into tapetum fibrosum through needle loom with fiber acupuncture;
Five, thermal contraction is handled: with above-mentioned tapetum fibrosum in High Temperature Furnaces Heating Apparatus 950-1200 ℃ temperature lower calcination 15-40 minute;
Six, the cooling of the tapetum fibrosum after above-mentioned calcining clot packing is finished product.
Claims (2)
1, a kind of low contraction contain the chromium fabric blanket production process, its production craft step comprises: batching, fusion, get rid of silk and become fibre, acupuncture, heat setting type, clot to pack; It is characterized in that it also has the thermal contraction treatment process steps, when containing the chromium tapetum fibrosum after heat setting process typing, with after the heat setting type contain the chromium tapetum fibrosum 950-1200 in High Temperature Furnaces Heating Apparatus ℃ temperature lower calcination 15-40 minute.
2, low contraction according to claim 1 contain chromium tapetum fibrosum and production technique, it is characterized in that the thermal contraction treatment process steps can replace the heat setting process step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100531674A CN101381235A (en) | 2007-09-04 | 2007-09-04 | Low shrinking chromium-containing fabric blanket production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100531674A CN101381235A (en) | 2007-09-04 | 2007-09-04 | Low shrinking chromium-containing fabric blanket production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101381235A true CN101381235A (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100531674A Pending CN101381235A (en) | 2007-09-04 | 2007-09-04 | Low shrinking chromium-containing fabric blanket production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101381235A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442182A (en) * | 2015-12-30 | 2016-03-30 | 山东鲁阳节能材料股份有限公司 | Method for preparing low-slag-ball ceramic fiber blanket |
| CN105818526A (en) * | 2016-03-31 | 2016-08-03 | 上海特安纶纤维有限公司 | Long-life and low-shrinkage thermal transfer printing blanket and preparation method thereof |
| CN109811470A (en) * | 2019-03-07 | 2019-05-28 | 上海伊索热能技术股份有限公司 | A kind of preparation method of low-density flexible ceramic fibers blanket |
-
2007
- 2007-09-04 CN CNA2007100531674A patent/CN101381235A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442182A (en) * | 2015-12-30 | 2016-03-30 | 山东鲁阳节能材料股份有限公司 | Method for preparing low-slag-ball ceramic fiber blanket |
| CN105442182B (en) * | 2015-12-30 | 2017-12-01 | 山东鲁阳节能材料股份有限公司 | A kind of preparation method of low slag ball ceramic fiber blanket |
| CN105818526A (en) * | 2016-03-31 | 2016-08-03 | 上海特安纶纤维有限公司 | Long-life and low-shrinkage thermal transfer printing blanket and preparation method thereof |
| CN109811470A (en) * | 2019-03-07 | 2019-05-28 | 上海伊索热能技术股份有限公司 | A kind of preparation method of low-density flexible ceramic fibers blanket |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090311 |