CN1078753A - The method for repairing and mending of defects of enamel layer on enamelled glass products and heating installation - Google Patents
The method for repairing and mending of defects of enamel layer on enamelled glass products and heating installation Download PDFInfo
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- CN1078753A CN1078753A CN 92108431 CN92108431A CN1078753A CN 1078753 A CN1078753 A CN 1078753A CN 92108431 CN92108431 CN 92108431 CN 92108431 A CN92108431 A CN 92108431A CN 1078753 A CN1078753 A CN 1078753A
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Abstract
Heating installation when the present invention proposes a kind of method for repairing and mending of defects of enamel layer on enamelled glass products and using this method, when it is characterized in that repairing firing process is divided into low-temperature heat and high temperature and burns till two work steps, promptly earlier to repairing the low-temperature heat in a big way at place, position, make thermal stresses obtain effectively to discharge, again high temperature is more among a small circle burnt till.Adopt annular, band shape or ellipsoid combination stove during low-temperature heat, adopt the high temperature firing furnace when burning till, the low-temperature heat stove is arranged by several heat-generating units and is formed in parallel, and each heat-generating units includes body of heater, nichrome wire, thermal insulation layer.Use this method for repairing and mending energy consumption low, the work efficiency height, quality is good, labour intensity is low.
Description
The present invention relates to the production technique and the equipment of enameling glass product.
Enameling glass product as glass-lined reactor, is had relatively high expectations to enamel layer, even the large vol retort of several kilolitres does not allow enamel layer the conductiving point of pin hole to occur yet.In process of production, in case find that little enamel layer defective as pin hole is arranged, all to repair and flash back, present method is earlier fault location to be cleaned, and as the polishing rust cleaning, repairs with enamel again, as spray enamel, place the high temperature calcining kiln to burn till again again in goods at last.Repair very little defective in this way, not only energy consumption is big, and the patch work amount is big, and when the heat once more of enamel layer, new defective can occur, often needs to repair repeatedly to burn till, and quality of item is descended, and influences work-ing life.
The objective of the invention is to propose a kind of, resemble big part product such as lass lining reactor especially enameling glass product, the new method for repairing and mending of enamel layer local defect, and be suitable for the heating installation of this method.This method for repairing and mending does not need to place calcining kiln heavily to burn in whole goods, only goods is repaired the position, local heating, thus overcome prior art energy consumption height, low, the ropy shortcoming of work efficiency.
The present invention is design like this.Resemble the huge like this equipment of glass-lined reactor when local defect having occurred, whole is heavily burnt, exhaust the people and drain the treasury really, and be very big waste.Could only repair burning to rejected region? as everyone knows, burning is repaiied by localized hyperthermia, will cause stress concentration, makes enamel coating produce a large amount of crackles, and is cold quick-fried.Therefore local key of repairing burning is that the stress when high temperature is burnt till is effectively discharged.Through test, the present invention has had important breakthrough in this respect.Its key is a step to be burnt till be divided into for two steps and burn till, promptly earlier to comprising repair the position one in a big way, with lower temperature, as 500～600 ℃ of heating, again to repairing burning till than the high temperature of zonule with 850～950 ℃ of place, position.
This scope should consider to make the stress of goods when expanded by heating and cooling contraction to be released, and can be the annular zone that comprises a horizontal stroke repairing the position, or a vertical band shape district, or the whole ellipsoid in top district.In the time of for example on repairing the cylindrical surface of position at goods, its low-temperature heat district can be a horizontal annulus, when repairing the position more than one as once having, this annulus allows not on same cross section, and have height to rise and fall, thereby several repairing points are once finished heating, but heating ring should continuously and should seal, stress could effectively discharge; When the repairing position is on the ellipsoid at goods end socket position, can be to the ellipsoid heating at whole end socket position.When repairing the position in any position, all can adopt band shape district heating method, promptly to end socket center, own product top,, stress is released through repairing the band shape district heating of position to the goods lower edge.When using method of the present invention, the pyrotoxin that its low-temperature heat and high temperature burn till can all place the inner chamber of goods, inwall is heated, burns till, or all place the goods outer wall, to outer wall heating, burn till, also can low-temperature heat outside, high temperature burns till interior, perhaps low-temperature heat is interior, and high temperature burns till outside.This can look the situation of goods, as when repairing the open type retort, can use internal heating, outer thermal-insulating method, when repairing the enclosed retort, then uses outer heating method more convenient.
When using method for repairing and mending of the present invention, calcining kiln originally is inapplicable, must use corresponding heating installation.Described heating installation is divided into two kinds of low-temperature heat stove and high temperature firing furnaces.The low-temperature heat stove is arranged in order by several heat-generating units and is formed in parallel, and be furnished with temperature element and temperature regulating device, its temperature is controlled in 400～700 ℃ of scopes, heat-generating units comprises the body of heater of refractory materials, place the Heating element on the body of heater, as nichrome wire, the body of heater back side (with respect to heating face) is provided with thermal insulation layer.Use this built-up type low-temperature heat stove to make up, thereby use more convenient according to different size, model, shape and the repairing position of product.The structure of high temperature firing furnace is similar to heat-generating units, comprises body of heater, Heating element, thermal insulation layer, also has temperature element and temperature regulating device, temperature is controlled in 800～1000 ℃ of scopes, its heating face is the circular arc that is recessed or protruding, to adapt to the shape of burning till, improves thermo-efficiency.
Effect of the present invention is fairly obvious, owing to do not need and will become whole heavy goods of ton heavily to burn, and reduced energy consumption, and improved work efficiency, also improved quality product, reduced product cost, improved benefit.
The invention will be further described below in conjunction with accompanying drawing and embodiment.
Fig. 1 is inner chamber heating-type annular low-temperature heat combination stove and firing furnace.
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the heat-generating units synoptic diagram;
Fig. 4 is outer wall type high temperature firing furnace;
Fig. 5 is a height flighting schedule annular low-temperature heat stove synoptic diagram;
Fig. 6 is outer wall heating-type annular low-temperature heat combination stove and firing furnace and firing furnace;
Fig. 7 is the vertical view of Fig. 6;
Fig. 8 is inner chamber heating-type vertical bar shaped low-temperature heat combination stove and the vertical bar shaped low-temperature heat of outer wall heating-type combination stove;
Fig. 9 is an inner chamber heating-type ellipsoid low-temperature heat stove;
Figure 10 is outer wall heating-type ellipsoid low-temperature heat stove and firing furnace.
Embodiment 1: can adopt inner chamber heating-type annular low temperature combination stove for the repairing of open type retort, and as Fig. 1, Fig. 2, its high temperature firing furnace can be used the inner chamber heating-type, also available outer wall heating-type.Low-temperature heat combination stove 1 places open type retort 2 inner chambers, is arranged by several heat-generating units 3 to be formed in parallel, and forms a horizontal annulus.At the upper and lower sides of combination stove, all establish ring-type thermal insulation layer band 4, to improve thermo-efficiency.Heat-generating units 3 is by body of heater 8 among Fig. 3, and nichrome wire 9 and thermal insulation layer 10 are formed.Combination stove is furnished with temperature thermocouple 5 and temperature regulating device.
High temperature firing furnace 6 among Fig. 4 is similar to the heat-generating units 3 in the low temperature combination stove, and by body of heater, Heating element nichrome wire and thermal insulation layer are formed, and also are furnished with thermopair and temperature regulating device.But the heating face of its body of heater is made recessed or protruding circular arc with its position, to improve thermo-efficiency.Also be provided with thermal insulation layer 7 around the firing furnace.
Fig. 5 is during when the more than place of defective and not in same cross section, the heat-generating units 3 of low temperature combination stove can according to defective locations within the specific limits height rise and fall, but the heating zone should be sealed continuously.
Fig. 6, Fig. 7 are outer wall heating-type annular low-temperature heat combination stove and inner chamber heating-type firing furnace.When repairing the enclosed reactor, can adopt this form.
Embodiment 2: repair the position in any position, all available vertical bar shaped combination stove heating.The left side is the inner chamber heating-type among Fig. 8, and the right side is the outer wall heating-type.During when the more than place of defective and not at same profile, allow the single band shape district that is formed of heating crooked within the specific limits, but the heating zone should be continuous according to defective locations.
Embodiment 3: when defective is on the ellipsoid of end socket, can use as Fig. 9, ellipsoid combination stove heating shown in Figure 10.Process furnace can heat (being suitable for the open type reactor) at inner chamber, also can heat (being suitable for the enclosed reactor) at outer wall.
In a word, use this combination type heating furnace and firing furnace, can be according to shape of products and the characteristics and the working condition arbitrary combination of all size model, thus make construction most convenient, best results.
Claims (8)
1, a kind of method for repairing and mending of defects of enamel layer on enamelled glass products, comprise fault location cleaning, enamel are repaired and firing process, it is characterized in that its firing process is divided into low-temperature heat and high temperature burnt till for two steps: the bigger scope that the stress that is produced when promptly elder generation repairs the position and goods local heating is expanded comprising is released, as annular zone, band shape district or sphere shape district, with lower temperature heating, about 500～600 ℃ of its temperature; Burn till about 850～950 ℃ of its temperature to repairing the less regional high temperature in place, position again.
2, method for repairing and mending according to claim 1, when it is characterized in that on repairing the cylindrical surface of position at goods, its low-temperature heat scope is one and comprises the horizontal annulus of repairing the position that described annulus allows height and rises and falls, but should seal continuously; When the repairing position was on the ellipsoid at goods end socket position, heated perimeter was the ellipsoid at end socket position.
3, method for repairing and mending according to claim 1, it is characterized in that no matter repairing the position in any position, its low-temperature heat scope is end socket center, own product top through repairing the band shape district of position to the goods lower edge, and described band shape allows crooked, but should be continuous.
4, according to claim 1,2 or 3 described method for repairing and mending, it is characterized in that pyrotoxin that described low-temperature heat and high temperature burns till can be with the interior amine or the outer wall that place goods, but also low-temperature heat outside, high temperature burns till interior, perhaps low-temperature heat is interior, and high temperature burns till outside.
5, according to the heating installation of the described method for repairing and mending of claim 1, it is characterized in that described low-temperature heat stove is formed according to combination of features such as the specification of goods, model, shapes by several heat-generating units, each heat-generating units is arranged in order, parallel connection, and be furnished with temperature element and temperature regulating device, its temperature is controlled in 400～700 ℃ of scopes; Heat-generating units places the Heating element on the body of heater by body of heater, as the thermal insulation layer formation of nichrome wire and the back side (with respect to heating face); High temperature firing furnace structure is similar to heat-generating units, comprises body of heater, comprises body of heater, Heating element, thermal insulation layer, also is furnished with temperature element and temperature regulating device, and its temperature is controlled in 800～1000 ℃ of scopes.
6, heating installation according to claim 5 is characterized in that each heat-generating units of described low-temperature heat combination stove is arranged in annular, and described annulus can place the goods inner chamber, the heating towards outside; Also can place outer wall, heating is towards interior; Each heat-generating units allows height and rises and falls when arranging, be not on the same cross section.
7, heating installation according to claim 5 is characterized in that each heat-generating units of described low-temperature heat stove is arranged in ellipsoid, can place the goods inner chamber, and heating face is protruding sphere, also can place outer wall, and heating face is concave spherical surface.
8, heating installation according to claim 5, each heat-generating units that it is characterized in that described low-temperature heat stove are arranged in band shape from top to bottom, can place inner chamber, heating towards outside, also can place outer wall, heating is towards the lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108431 CN1078753A (en) | 1992-05-19 | 1992-05-19 | The method for repairing and mending of defects of enamel layer on enamelled glass products and heating installation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92108431 CN1078753A (en) | 1992-05-19 | 1992-05-19 | The method for repairing and mending of defects of enamel layer on enamelled glass products and heating installation |
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| CN1078753A true CN1078753A (en) | 1993-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 92108431 Pending CN1078753A (en) | 1992-05-19 | 1992-05-19 | The method for repairing and mending of defects of enamel layer on enamelled glass products and heating installation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877959A (en) * | 2019-10-31 | 2020-03-13 | 胜利油田新大管业科技发展有限责任公司 | One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof |
| CN114096503A (en) * | 2019-07-08 | 2022-02-25 | 奥梅拉斯表面处理和金属加工有限公司 | Repair of defective sites including substrate surface in glass or glass ceramic coating on metal or ceramic substrate |
-
1992
- 1992-05-19 CN CN 92108431 patent/CN1078753A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114096503A (en) * | 2019-07-08 | 2022-02-25 | 奥梅拉斯表面处理和金属加工有限公司 | Repair of defective sites including substrate surface in glass or glass ceramic coating on metal or ceramic substrate |
| CN110877959A (en) * | 2019-10-31 | 2020-03-13 | 胜利油田新大管业科技发展有限责任公司 | One-step enameling and low-temperature firing glass-lined glaze for oilfield pipeline corrosion prevention and preparation method and application thereof |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |