CN1014724B - Technique of silico-manganese steel enamel - Google Patents
Technique of silico-manganese steel enamelInfo
- Publication number
- CN1014724B CN1014724B CN 88103025 CN88103025A CN1014724B CN 1014724 B CN1014724 B CN 1014724B CN 88103025 CN88103025 CN 88103025 CN 88103025 A CN88103025 A CN 88103025A CN 1014724 B CN1014724 B CN 1014724B
- Authority
- CN
- China
- Prior art keywords
- coat enamel
- ground
- blank
- enamel
- slip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
- C03C8/14—Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill-additions
Abstract
The present invention discloses a preparation technology of enamel capable of using martinel steel as a blank. In the preparation technology, a novel formula of ground glaze and surface glaze and an immersion method or a pouring and pole flow enamelizing method are adopted; a sintered porcelain surface is ground by a grinding machine; and finally, the porcelain surface is sintered again. An enamel product prepared by the preparation technology has the advantages of favorable acid resistance, alkali resistance and abrasion resistance and high precision, and the adherence between the enamel and a steel blank is good. The preparation technology can be widely applied to various industrial enamel products prepared from martinel steel and low-carbon steel.
Description
The present invention relates to the prescription of enamelled manufacturing process and enamel.
Existing enamel manufacturing process and enamel only are applicable to soft steel to be the enamel blank.But the intensity of these steel is relatively poor usually, and in many industrial products, the silicon manganese steel that the normal intensity of using is higher and the adhesion property of existing enamel are very poor.For the blank of tubulose or column, bad with existing dipping enamelling method application of slip effect, tend to occur the uppity phenomenon of uneven distribution or thickness, and when blank is heavier, also can't operate.And these products are generally to the having relatively high expectations of adherence, wear resistance, erosion resistance and roughness and precision, so it is the qualified enamelware of blank that prior art can not be made with the silicon manganese steel.
Purpose of the present invention, be to adopt a kind of new enamel manufacturing process and enamel prescription, enamel is not only had with the soft steel blank also have the adherence good, and make the enamel product have well acidproof, alkali resistance, wear resistance and roughness and precision with the silicon manganese steel blank.
Specific embodiment of the present invention is:
The first, the silicon manganese steel blank of selecting for use is warded off pre-treatment.
Purpose by this process is to remove the greasy dirt on blank surface, the machining stress of zone of oxidation and elimination blank.
The second, application of slip ground-coat enamel slurry after the drying, burns till.
The 3rd, application of slip cover-coat enamel slurry, drying, burn till after, repeat again a cover-coat enamel slurry the application of slip, dry, burn till.
The 4th, with shredder porcelain facing is ground to the accuracy requirement of drawing regulation after, burning till finished product.
Enamelware after burning till is because the enamel coating surface ratio is more coarse, variable thickness, thereby often do not reach desired precision, with shredder porcelain facing is ground to claimed accuracy after, burn till again, can meet the requirements of precision.
Because the silicon manganese steel blank mostly is column or tubulose, dipping enamelling method effect is bad with having now, tends to occur the phenomenon of uneven distribution, thereby the application of slip method of above-mentioned ground-coat enamel slurry and cover-coat enamel slurry can adopt the vertical flow coat of dipping to ward off method or the vertical flow coat of cast is warded off method.
The flow coat method of warding off of hanging down dipping all immerses blank in the glaze slip exactly, with anchor clamps blank is vertically proposed, and treats till the glaze slip stop.This method is suitable for the blank of application of slip all styles of, and the outer wall of tubular blank especially should be wiped this part glaze slip off with rubber after the position seals of the application of slip or the application of slip not needing before the application of slip.
The vertical flow coat method of warding off of cast is the inwall that is used for application of slip tubular blank, make blank upright during the application of slip, a spheroid or a piston that has transmission rod is put into blank, mention to slight distance on blank with transmission rod, pour into a certain amount of glaze slip from above, allow spheroid or piston at the uniform velocity glide, glaze slip on the uniform cloth flow to till the stop glaze slip vertically downward in the blank.The elastic sphere that this kind method is adopted or the size of piston should be consistent with the internal diameter of blank or be close.
The ground-coat enamel slurry that is adopted in the above-mentioned technology is to introduce the mill addition grinding by the ground-coat enamel frit to form, and the chemical constitution of ground-coat enamel frit (weight %) is:
SiO
2：44.5-58.4，Al
2O
3：3.5-9.1，
B
2O
3：11.5-19.0，R
2O：16.0-20.4，
R, expression monovalent base metal.
CaF
2：4.5-11.8，Na
2SiF
6：0.5-3.5，
CoO：0.9-2.7，MnO
2：0.8-5.5，
CuO：0.2-2.8，Fe
2O
3：0.3-3.5，
The composition of mill addition (100 parts umber in glaze piece) is: aluminium sesquioxide: 1.0-3.0
Sodium Nitrite: 0-0.2, borax: 0.5-1.1, soda ash: 0.2-0.7,
Ice crystal: 0.1-0.3, clay: 4.5-8.0, silica powder: 15.0-22.0,
Above-mentioned ground-coat enamel frit is to be cooperated by two kinds, three kinds or four kinds of chemical constitutions and the different ground-coat enamel frit of fusing point to form.
Above-mentioned ground-coat enamel frit can be by first kind of ground-coat enamel frit and second kind of ground-coat enamel frit with 70: 30-50: 50 ratio cooperates and forms.
First kind chemical constitution (weight %) is:
SiO
2：49.0-62.0，Al
2O
3：5.0-10.0，
CaF
2：6.0-13.0，B
2O
3：10.0-16.0，
R
2O：18.0-21.0，Na
2SiF
6：1.0-5.0，
R: expression monovalent base metal.
MnO
2：0.7-5.0，CoO：1.0-3.0;
Second kind chemical constitution (weight %) is:
SiO
2：40.0-50.0，Al
2O
3：2.0-7.0，
MnO
2：1.0-6.0，B
2O
3：15.0-22.0，
R
2O：14.0-19.0，Fe
2O
3：1.0-7.0，
R: expression monovalent base metal.
CaF
2：3.0-9.0，CuO：0.5-5.5，
CoO：0.8-2.0。
The cover-coat enamel that adopted in above-mentioned technology slurry can be that cover-coat enamel frit by following chemical constitution (weight %) grinds and forms:
SiO
2：62.0-69.0，Al
2O
3：2.0-5.0，
Na
2O：6.0-11.0，B
2O
3：2.0-6.0，
ZrO
2：0.8-6.0，Na
2SiF
6：1.0-4.0，
TiO
2：5.0-9.0，K
2O：0-3.0，
Li
2O：0.5-5.0，CoO：0.5-2.0，
MnO
2：0.3-1.5，CaO：0-3.0。
The cover-coat enamel that adopted in above-mentioned technology slurry also can be that cover-coat enamel frit by following chemical constitution (weight %) grinds and forms:
SiO
2：63.0-68.0，Al
2O
3：9.0-13.0，
Na
2O：3.0-8.0，MnO
2：0-3.0，
TiO
2：1.0-6.0，B
2O
3：1.0-5.0，
ZrO
2：0.5-5.5，CaO：1.0-5.0，
K
2O：2.0-7.0，CoO：0.6-2.7，
Li
2O：1.5-6.5，P
2O
5：0-1.5，
Na
2SiF
6：1.0-6.0。
Because the present invention has adopted a kind of new enamel manufacturing process, used in the technology to be adapted at ground-coat enamel and the cover-coat enamel prescription that use on the silicon manganese steel surface, thereby the enamel product of manufacturing has the following advantages:
(1). the adhesion property of enamel and blank is good.
(2). stronger corrosion resistance nature is arranged.In the hydrochloric acid soln of concentration 20%, under 100 ℃ the condition, corroded weight loss 0.091mg/cm 4 hours
2Below; In 1% caustic soda soln, under 100 ℃ the condition, corroded weight loss 0.036mg/cm 4 hours
2Below.
(3). hardness height, Mo Shi 7-8.
(4). slightly degree of making is good, Ra:0.40-0.100.
(5). wear resisting property is strong, and wear-resistant index is at 0.040mg/cm
2Below the min.
(6). the precision height guarantees that working accuracy is 0.07-0.14.
It is the various industrial enamels of blank that the present invention can be widely used in soft steel, silicon manganese steel, especially is the industrial enamel of blank with the 27SiMn steel.
Embodiment:
Get the raw material of following composition (weight %): fluorite: 6.66, feldspar: 25.28, SODIUMNITRATE: 6.24, manganese oxide: 1.05, cobalt oxide: 1.05, borax: 25.77, quartz: 22.77, soda ash: 8.91, sodium silicofluoride: 1.59.Behind the accurately also abundant mixing of weighing, add in the smelting furnace, under 1200-1300 ℃ temperature, found into first kind of ground-coat enamel frit.Its chemical constitution (weight %) is:
SiO
2：51.0，Al
2O
3：6.0，Na
2SiF
6：2.0，CaF
2：7.0，
B
2O
3: 12.0, MnO
2: 1.0, CoO:2.0, R
2O:19.0, R: expression monovalent base metal.
Get the raw material of following composition (weight %): fluorite: 4.40, feldspar: 13.80, SODIUMNITRATE: 5.10, cupric oxide: 1.20, ferric oxide: 1.50, cobalt oxide: 1.50, manganese oxide: 3.90, soda ash: 5.50, borax: 40.30, quartz: 22.80.Behind the accurately also abundant mixing of weighing, add in the smelting furnace, under 1200-1300 ℃ temperature, found into second kind of ground-coat enamel frit.Its chemical constitution (weight %) is:
SiO
2：44.00，Al
2O
3：3.50，CaF
2：5.00，MnO
2：4.00，
B
2O
3：20.00，Fe
2O
3：2.00，CuO：1.70，CoO：1.80，
R
2O:18.00, R: expression monovalent base metal.
Get first kind of ground-coat enamel frit and second kind of ground-coat enamel frit and cooperate, cooperate the chemical constitution (weight %) of back frit to be with 60: 40 ratio:
SiO
2：48.20，Al
2O
3：5.00，CoO：1.92，CuO：0.68，
MnO
2：2.20，B
2O
3：15.20，CaF
2：6.20，Fe
2O
3：0.80，
NaSiF
6: 1.20, R
2O:18.60, R: expression monovalent base metal.Introduce mill addition (100 parts umber in glaze piece): Sodium Nitrite: 0.15, aluminium sesquioxide: 3, borax: 0.8, soda ash: 0.3, ice crystal: 0.2, silica powder: 17, clay: 5, water: 45.Make the ground-coat enamel slurry through grinding, its grinding rate is the 0.1-0.3g/140 order, and unit weight is at 420-425g/250ml during use, and the stop degree is at 0.03-0.04g/cm
2
Get the raw material of following composition (weight %): feldspar: 12.69, borax: 9.28, SODIUMNITRATE: 4.13, titanium oxide: 5.88, zirconium white: 0.83, Quilonum Retard: 7.28, cobalt oxide: 0.93, lime carbonate: 2.27, manganese oxide: 0.52, sodium silicofluoride: 1.27, soda ash: 9.20, quartz: 45.72.Behind the accurately also abundant mixing of weighing, add in the smelting furnace, under 1300-1400 ℃ temperature, found into first kind of cover-coat enamel frit, its chemical constitution (weight %) is: SiO
2: 65.00, Al
2O
3: 2.86, Li
2O:3.53, CoO:1.00, MnO
2: 0.41, Na
2O:10.27, B
2O
3: 4.07, CaO:1.50, TiO
2: 7.10, K
2O:1.76, ZrO
2: 1.00, Na
2SiF
6: 1.50.
Get the raw material of following composition (weight %): feldspar: 47.07, borax: 7.14, SODIUMNITRATE: 1.57, lime carbonate: 3.19, Quilonum Retard: 8.60, sodium silicofluoride: 1.76, titanium oxide: 1.72, zirconium white: 0.86, cobalt oxide: 1.44, manganese oxide: 1.62, quartz: 25.03.Weighing adds in the smelting furnace after accurately and fully mixing an ancient unit of weight, founds into second kind of cover-coat enamel frit under 1300-1400 ℃ temperature.Its chemical constitution (weight %) is:
SiO
2：64.00，Al
2O
3：10.00，Na
2O：3.58，MnO
2：1.50，B
2O
3：3.00
Li
2O：4.00，TiO
2：2.00，K
2O：5.42，CoO：1.50，CaO：2.00，ZrO
2：1.00，Na
2SiF
6：2.00。
Get first kind of cover-coat enamel frit (or second kind of cover-coat enamel frit), grind to form the cover-coat enamel slurry, its grinding rate is: the 0.1-0.3g/140 order, and unit weight is at 425-430g/250ml during use, and the stop degree is at 0.035-0.05g/cm
2
Behind deployed ground-coat enamel, the cover-coat enamel slurry, get the 27SiMn steel billet spare of a hydraulic prop cylinder body.At first blank is given birth to the pre-treatment of warding off of burning (650-700 ℃), sandblast, cleaning, check; Make blank upright then, an elasticity ball (size of ball is consistent with the blank internal diameter) that has transmission rod is put into blank, mention ball to from blank upper end slight distance with transmission rod, pour into a certain amount of ground-coat enamel slurry, allow ball at the uniform velocity glide from above, glaze slip on the uniform cloth in the blank, glaze slip is flow to till the stop vertically downward, handle with care and send the drying shed oven dry to, move into enamel furnace under 880-910 ℃ temperature, enamel firing 8-15 minute, take out and check that repairing is qualified; With the identical method application of slip cover-coat enamel slurry of application of slip ground-coat enamel slurry, move in the enamel furnace, under 860-900 ℃ temperature enamel firing 7-10 minute, take out check repair after, repeat the application of slip of a cover-coat enamel slurry again, dry, burn till, check repairing; After adding clear water porcelain facing is ground to the desired precision of drawing with shredder at last, put into enamel furnace again, under 860-900 ℃ temperature enamel firing 7-10 minute, promptly obtaining an inwall had enamelled hydraulic prop cylinder body.It guarantees working accuracy 0.07-0.14mm, and roughness Ra is 0.40-0.100.
Claims (5)
1, a kind of enamel manufacturing process is characterized in that: at first the silicon manganese steel blank is warded off pre-treatment, then application of slip ground-coat enamel slurry, drying, after burning till, application of slip cover-coat enamel is starched again, drying, after burning till, repeat application of slip cover-coat enamel slurry again one time, oven dry is burnt till, with shredder porcelain facing is planarized to the accuracy requirement that drawing is stipulated at last, reburns into finished product; Described ground-coat enamel slurry is to introduce the mill addition grinding by the ground-coat enamel frit to form, and the chemical constitution of ground-coat enamel frit is:
SiO
2：44.5-58.4， Al
2O
3：3.5-9.1，
B
2O
3：11.5-19.0， R
2O：16.0-20.4，
CaF
2：4.5-11.8， Na
2SiF
6：0.5-3.5，
CoO：0.9-2.7， MnO
2：0.8-5.5，
CuO：0.2-2.8， Fe
2O
3：0.3-3.5，
The composition of mill addition (100 parts umber in glaze piece) is: borax: 0.5～1.1,
Sodium Nitrite: 0～0.2, soda ash: 0.2～0.7, ice crystal: 0.1～0.3
Silica powder: 15.0～22.0, clay: 4.5～8.0, aluminium sesquioxide: 1.0～3.0;
Described cover-coat enamel slurry is to be ground by first kind or second kind of cover-coat enamel frit to form, and the chemical constitution of first kind of cover-coat enamel frit (weight %) is:
SiO
2：62.0-69.0， Al
2O
3：2.0-5.0，
K
2O：0-3.0， Na
2O：6.0-11.0，
B
2O
3：2.0-6.0， ZrO
2：0.8-6.0，
Na
2SiF
6：1.0-4.0， TiO
25.0-9.0，
Li
2O：0.5-5.0， CoO：0.5-2.0，
CaO：0-3.0， MnO
2：0.3-1.5；
The chemical constitution of second kind of cover-coat enamel frit (weight %) is:
SiO
2：63.0-68.0， Al
2O
3：9.0-13.0，
K
2O：2.0-7.0， Na
2O：3.0-8.0，
B
2O
3：1.0-5.0， ZrO：0.5-5.5，
Na
2SiF
6：1.0-6.0， TiO
2：1.0-6.0，
Li
2O：1.5-6.5， P
2O
5：0-1.5，
CaO：1.0-5.0， CoO：0.6-2.7，
MnO
2：0-3.0。
2, according to the described enamel manufacturing process of claim 1, it is characterized in that: the said application of slip is that blank is all immersed in the glaze slip, with anchor clamps blank is vertically proposed, and treats till the glaze slip stop.
3, according to the described enamel manufacturing process of claim 1, it is characterized in that: the said application of slip is to make tubular blank upright, an elastic sphere or a piston that has transmission rod is put into blank, mention to from the upper end slight distance with transmission rod, pour into a certain amount of glaze slip from above, allow spheroid or piston at the uniform velocity glide, glaze slip on the uniform cloth flow to till the stop glaze slip vertically downward in the blank.
4, according to claim 1 or 2 or 3 described enamel manufacturing process, it is characterized in that: said ground-coat enamel frit is to be cooperated by two kinds, three kinds or four kinds of chemical constitutions and the different ground-coat enamel frit of fusing point to form.
5, according to claim 1 or 2 or 3 described enamel manufacturing process, it is characterized in that: said ground-coat enamel frit is to be cooperated with 70: 30～50: 50 ratio by first kind of ground-coat enamel frit and second kind of ground-coat enamel frit to form, and first kind chemical constitution (weight %) is:
SiO
2：49.0-62.0，Al
2O
3：5.0-10.0，
B
2O
3：10.0-16.0，R
2O：18.0-21.0，
R, expression monovalent base metal.
CaF
2：6.0-13.0，Na
2SiF
6：1.0-5.0，
CoO：1.0-3.0，MnO
2：0.7-5.0，
Second kind chemical constitution (weight %) is: SiO
2: 40.0-50.0,
Al
2O
3：2.0-7.0，B
2O
3：15.0-22.0
R
2O：14.0-19.0，CaF
2：3.0-9.0，
R, expression monovalent base metal.
CoO：0.8-2.0，MnO
2：1.0-6.0，
CuO：0.5-5.5，Fe
2O
3：1.0-7.0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88103025 CN1014724B (en) | 1988-05-21 | 1988-05-21 | Technique of silico-manganese steel enamel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88103025 CN1014724B (en) | 1988-05-21 | 1988-05-21 | Technique of silico-manganese steel enamel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1037743A CN1037743A (en) | 1989-12-06 |
| CN1014724B true CN1014724B (en) | 1991-11-13 |
Family
ID=4832406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88103025 Expired CN1014724B (en) | 1988-05-21 | 1988-05-21 | Technique of silico-manganese steel enamel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1014724B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089319C (en) * | 1998-12-16 | 2002-08-21 | 中国科学院新疆化学研究所 | Method for copper-contg. ceramic coating of wall of catalytic reactor |
| CN102408196B (en) * | 2010-09-21 | 2015-01-21 | 湖南立发釉彩科技有限公司 | Fish-scaling-resistant enamel glaze for hot-rolled steel plates |
| CN102219382B (en) * | 2011-03-31 | 2013-06-26 | 广东道氏技术股份有限公司 | Frit for full polish and preparation method thereof |
| DE102012011936A1 (en) * | 2012-06-18 | 2013-12-19 | Api Schmidt-Bretten Gmbh & Co. Kg | Plate heat exchangers |
| CN103614725B (en) * | 2013-11-28 | 2015-07-29 | 浙江安吉健丰金属制品有限公司 | A kind of enamel method |
| CN105755468B (en) * | 2016-02-29 | 2018-02-27 | 广东康业电器有限公司 | A kind of production technology of cast iron enamel part |
| CN108409138B (en) * | 2018-04-11 | 2020-09-25 | 东北大学 | Sulfuric acid and hydrochloric acid dew point corrosion resistant enamel coating and preparation process thereof |
| CN109628931A (en) * | 2019-01-21 | 2019-04-16 | 宁波好物家居用品设计有限公司 | A kind of stainless steel ware and preparation method thereof with enamel coating |
-
1988
- 1988-05-21 CN CN 88103025 patent/CN1014724B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037743A (en) | 1989-12-06 |
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