CN102634798A - Dry-type enameling method for cast iron enameling stove - Google Patents
Dry-type enameling method for cast iron enameling stove Download PDFInfo
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- CN102634798A CN102634798A CN2012101438917A CN201210143891A CN102634798A CN 102634798 A CN102634798 A CN 102634798A CN 2012101438917 A CN2012101438917 A CN 2012101438917A CN 201210143891 A CN201210143891 A CN 201210143891A CN 102634798 A CN102634798 A CN 102634798A
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Abstract
The invention relates to a dry-type enameling method for a cast iron enameling stove. The dry-type enameling method is characterized by comprising the following steps of: 1) uniformly coating base glazes on inner and outer surfaces of a pot body made of cast iron; 2) placing the pot body with the base glazes in a drying furnace and drying for 20-25 minutes; 3) placing the dried pot body in four warm areas in a sintering furnace for uniformly sintering, and advancing at constant speed in the sintering furnace; 4) scattering dry enameling cover glaze powder when the temperature is above 765 DEG C; 5) sending a semi-finished product obtained in the step 4) to the four warm areas in the sintering furnace for uniformly sintering, and advancing at constant speed in the sintering furnace; and 6) naturally cooling to room temperature and finishing the enameling process. Compared with a traditional enameling product, the cast iron enameling stove has the advantages of better heat conductivity, high temperature resistance, corrosion resistance and uniform heat transfer, does not generate excessive heating waste gas during heating process, meets health standard and is easily cleaned. Besides, the dry type enameling method for the cast iron enameling stove has the advantages of simple process, automatic operation, small labor intensity, high working efficiency and the like.
Description
Technical field
The invention belongs to cast iron kitchen range technical field, particularly relate to a kind of dry type enamel method of cast iron enamel kitchen range.
Background technology
At present; Mostly the kitchen range of selling on the market are that stainless steel, glass, non-precious metal material process, like stainless steel dishware, toughened glass stove and accessory and common iron pan; This its weak point of class formation kitchen range is: one, dangerous, unhygienic; Product is prone to fragmentation, is prone to get rusty, is prone to oxidation, and the food in the culinary art directly contacts with metal, does not meet the food sanitation requirement; Two, contaminate environment, waste resource, easy to be slow because of conducting heat, and produce unnecessary heat exhaust gases, it is difficult to clean; Three, of poor quality, product is acid and alkali-resistance, non-refractory not; Four, cost is high, and pot body starting material are had relatively high expectations, and adds heavy user's economical load.
Well-known enamel has good can preventing, and metal from getting rusty, and makes metal when being heated, be unlikely to the erosion that forms zone of oxidation and can resist various liquid on the surface.Enamelware is safety non-toxic not only; It is clean to be easy to washing; Can be widely used as the ware and the washing implement that use in the daily life; And under given conditions, premium properties such as high, high temperature resistant, wear-resisting and insulating effect of the hardness that the enamel application of slip shows on metal body makes enamelware that purposes more widely arranged.
Enamel product generally all adopts traditional wet or dry process at present.Because it is not so high that tradition requires enamel technology, just some quote utensil and container.Adopt now traditional enamel method to make resistant to elevated temperatures kitchen range or earth pot, frying pan etc.; The crackled glaze phenomenon can occur for a long time, not only influence appearance behind the crackled glaze, influence the use of product especially; Especially form iron rust easily in the crackled glaze position, the diet that influences people is healthy.
Enamel dry process flow process in the prior art: go alone method technology: enamel plate base-punching-ground surface processing-electrostatic painting-burn till-frame up.Technology is comparatively simple, can not satisfy the demand of requirements at the higher level.
Summary of the invention
The present invention for solve the technical problem that exists in the known technology provide a kind of technology simple, improve product work-ing life, avoid using for a long time the dry type enamel method of the cast iron enamel kitchen range of crackled glaze phenomenon.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
A kind of dry type enamel method of cast iron enamel kitchen range is characterized in that: said enamel method mainly may further comprise the steps:
(1), bottoming glaze: the surfaces externally and internally at the pot body that is formed by the cast iron manufacturing evenly applies ground-coat enamel, and the thickness of said ground-coat enamel is 0.12 ~ 0.14mm;
(2), oven dry: the pot body that step 1 is had ground-coat enamel is placed on the oven dry carriage gently, will dry carriage and be placed in the stoving oven, and the temperature control of said stoving oven is divided into cold zone and high-temperature zone, 100 ℃ ~ 120 ℃ of the temperature of said cold zone; 120 ℃ ~ 150 ℃ of the temperature of said high-temperature zone, the said pot body that has ground-coat enamel was dried in stoving oven 20 ~ 25 minutes;
(3), ground-coat enamel sintering: the pot body after step 2 oven dry is placed on the sintering carriage, the sintering carriage is placed on sintering in the sintering oven, and in sintering oven, at the uniform velocity advances, the speed of travel is 0.7 ~ 0.8m/ minute; Said sintering oven is divided into four warm areas, and the temperature of first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 770 ℃ ~ 775 ℃;
(4), spread cover-coat enamel dry powder: after in sintering oven, coming out, when temperature is higher than more than 765 ℃, on the pot body behind the sintering, evenly sprinkle cover-coat enamel dry powder, this moment, the thickness of dry powder was 0.3mm ~ 0.4mm;
(5), finished product sintering: the work in-process that step 4 is come out are sent into and are carried out sintering in the sintering oven, and in sintering oven, at the uniform velocity advance, and the speed of travel is 0.5 ~ 0.7m/ minute; Said sintering oven is divided into four warm areas, and the temperature of first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 768 ℃ ~ 773 ℃;
(6), naturally cool to room temperature, completion enamel process.
The advantage that the present invention has with positively effect is: because the present invention adopts the produced enamel product of above-mentioned technological process to compare with traditional enamel product and has better heat conductivity; High temperature resistant, corrosion-resistant, conduct heat evenly, in heat-processed, can not produce more than heat exhaust gases; Meet health standards, and be easy to advantages such as cleaning, long service life.Advantages such as the present invention has that technology is simple in addition, automated job, labour intensity are little, working efficiency height.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now specify as follows:
A kind of dry type enamel method of cast iron enamel kitchen range mainly may further comprise the steps:
(1), bottoming glaze: the surfaces externally and internally at the pot body that is formed by the cast iron manufacturing evenly applies ground-coat enamel, and the thickness of said ground-coat enamel is 0.12 ~ 0.14mm; Pot body in this step is to adopt iron casting to form, and to the human body beneficial, the pot body that casting forms is the pot body of accomplishing through operations such as casting, machinings to well-known cast iron when being applied to kitchen range, avoids when the bottoming glaze, occurring uneven problem like this.
(2), oven dry: the pot body that step 1 is had ground-coat enamel is placed on the oven dry carriage gently, will dry carriage and be placed in the stoving oven, and the temperature control of said stoving oven is divided into cold zone and high-temperature zone, 100 ℃ ~ 120 ℃ of the temperature of said cold zone; 120 ℃ ~ 150 ℃ of the temperature of said high-temperature zone, the said pot body that has ground-coat enamel was dried in stoving oven 20 ~ 25 minutes; The main purpose of this step is the outside surface that the ground-coat enamel of accomplishing fluently well is attached to pot body, if discovery has ground-coat enamel to come off or be obviously uneven, should return first step and replenish ground-coat enamel again.
(3), ground-coat enamel sintering: the pot body after step 2 oven dry is placed on the sintering carriage, the sintering carriage is placed on sintering in the sintering oven, and in sintering oven, at the uniform velocity advances, the speed of travel is 0.7 ~ 0.8m/ minute; Said sintering oven is divided into four warm areas, and the temperature of first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 770 ℃ ~ 775 ℃; This step emphasis is the sintering to ground-coat enamel, and this step is the key of laying foundation, if go wrong in this step, with adhering to of the cover-coat enamel that directly influences next step, so this step should strict controlled temperature scope and the rate of advance in sintering oven.
(4), spread cover-coat enamel dry powder: after in sintering oven, coming out, when temperature is higher than more than 765 ℃, on the pot body behind the sintering, evenly sprinkle cover-coat enamel dry powder, this moment, the thickness of dry powder was 0.3mm ~ 0.4mm; This step is the key of enamel product outer surface smoother, generally adopts 80 purpose vibratory screening apparatuss to spread dry powder, guarantees uniformity coefficient like this, guarantees the qualification rate of product.
(5), finished product sintering: the work in-process that step 4 is come out are sent into and are carried out sintering in the sintering oven, and in sintering oven, at the uniform velocity advance, and the speed of travel is 0.5 ~ 0.7m/ minute; Said sintering oven is divided into four warm areas, and the temperature of first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 768 ℃ ~ 773 ℃; This step emphasis is the sintering to cover-coat enamel; This step is the key that finished product, also is the step that can reflect product percent of pass, if go wrong in this step; That disqualification rate will rise, so this step should strict controlled temperature scope and the rate of advance in sintering oven.So that improve the qualification rate of product.
(6), naturally cool to room temperature, completion enamel process.
The present invention compares with traditional enamel product has better heat conductivity, high temperature resistant, corrosion-resistant, conduct heat evenly, in heat-processed, can not produce more than heat exhaust gases, meets health standards, and is easy to advantages such as cleaning, long service life.Advantages such as the present invention has that technology is simple in addition, automated job, labour intensity are little, working efficiency height.
Claims (1)
1. the dry type enamel method of cast iron enamel kitchen range, it is characterized in that: said enamel method mainly may further comprise the steps:
(1), bottoming glaze: the surfaces externally and internally at the pot body that is formed by the cast iron manufacturing evenly applies ground-coat enamel, and the thickness of said ground-coat enamel is 0.12 ~ 0.14mm;
(2), oven dry: the pot body that step 1 is had ground-coat enamel is placed on the oven dry carriage gently, will dry carriage and be placed in the stoving oven, and the temperature control of said stoving oven is divided into cold zone and high-temperature zone, 100 ℃ ~ 120 ℃ of the temperature of said cold zone; 120 ℃ ~ 150 ℃ of the temperature of said high-temperature zone, the said pot body that has ground-coat enamel was dried in stoving oven 20 ~ 25 minutes;
(3), ground-coat enamel sintering: the pot body after step 2 oven dry is placed on the sintering carriage, the sintering carriage is placed on sintering in the sintering oven, and in sintering oven, at the uniform velocity advances, the speed of travel is 0.7 ~ 0.8m/ minute; Said sintering oven is divided into four warm areas, and the temperature of first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 770 ℃ ~ 775 ℃;
(4), spread cover-coat enamel dry powder: after in sintering oven, coming out, when temperature is higher than more than 765 ℃, on the pot body behind the sintering, evenly sprinkle cover-coat enamel dry powder, this moment, the thickness of dry powder was 0.3mm ~ 0.4mm;
(5), finished product sintering: the work in-process that step 4 is come out are sent into and are carried out sintering in the sintering oven, and in sintering oven, at the uniform velocity advance, and the speed of travel is 0.5 ~ 0.7m/ minute; Said sintering oven is divided into four warm areas, and the temperature of first warm area is 545 ℃ ~ 555 ℃; 675 ℃ ~ 685 ℃ of the temperature of second warm area; The temperature of three-temperature-zone is 730 ℃ ~ 740 ℃; The temperature of four-temperature region is 768 ℃ ~ 773 ℃;
(6), naturally cool to room temperature, completion enamel process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210143891.7A CN102634798B (en) | 2012-05-10 | 2012-05-10 | Dry-type enameling method for cast iron enameling stove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210143891.7A CN102634798B (en) | 2012-05-10 | 2012-05-10 | Dry-type enameling method for cast iron enameling stove |
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| CN102634798A true CN102634798A (en) | 2012-08-15 |
| CN102634798B CN102634798B (en) | 2014-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404515A (en) * | 2014-10-28 | 2015-03-11 | 揭阳市库伟实业有限公司 | Making method of enamel sheet metal part for oven, and oven |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250702A (en) * | 2008-03-03 | 2008-08-27 | 江阴硅普搪瓷有限公司 | Method for baking enamel of macrotype glassed steel equipment with energy-saving type glassed steel enamel coating enamel |
| CN102051617A (en) * | 2010-12-24 | 2011-05-11 | 洪立业 | Production process of enamel steel plate |
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- 2012-05-10 CN CN201210143891.7A patent/CN102634798B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250702A (en) * | 2008-03-03 | 2008-08-27 | 江阴硅普搪瓷有限公司 | Method for baking enamel of macrotype glassed steel equipment with energy-saving type glassed steel enamel coating enamel |
| CN102051617A (en) * | 2010-12-24 | 2011-05-11 | 洪立业 | Production process of enamel steel plate |
Non-Patent Citations (1)
| Title |
|---|
| 闻瑞斌等: "《搪瓷技术》", 31 January 1987, 轻工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404515A (en) * | 2014-10-28 | 2015-03-11 | 揭阳市库伟实业有限公司 | Making method of enamel sheet metal part for oven, and oven |
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| CN102634798B (en) | 2014-05-07 |
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