CN1387016A - Heater coated with non-crystal viscose glass enamel - Google Patents

Heater coated with non-crystal viscose glass enamel Download PDF

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Publication number
CN1387016A
CN1387016A CN02111235A CN02111235A CN1387016A CN 1387016 A CN1387016 A CN 1387016A CN 02111235 A CN02111235 A CN 02111235A CN 02111235 A CN02111235 A CN 02111235A CN 1387016 A CN1387016 A CN 1387016A
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CN
China
Prior art keywords
steel pipe
metal steel
heating elements
electrical heating
zinc
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.)
Pending
Application number
CN02111235A
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Chinese (zh)
Inventor
周鸣
孙宝德
疏达
倪红军
李克
王俊
何昕
张佼
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN02111235A priority Critical patent/CN1387016A/en
Publication of CN1387016A publication Critical patent/CN1387016A/en
Pending legal-status Critical Current

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Abstract

A heater coated with adhesive non-crystal glass glaze is composed of steel tube, electric heating element in said steel tube, fixers welded to steel tube for said electric heating element, filling between steel tube and electric heating element, and adhesive glaze resisting the corrosion of molten zinc, which is applied on external surface of steel tube. Its advantages are simple structure, high heat conductivity, and low cost.

Description

Heater coated with non-crystal viscose glass enamel
Technical field: what the present invention relates to is a kind of heater, and particularly a kind of heater coated with non-crystal viscose glass enamel belongs to casting field.
Background technology: zinc liquid has strong corrosivity to metal, exist improper zinc consumption high in the present industrial galvanizing, account for 40%~50% of the total consumption of zinc, the traditional zinc pot mode of heating of China has external-heat (be included in the bottom of a pan, pot side, pot before, pot back heating), goes up hot type (comprising one-sided, centre and bilateral radiation heating), the former conducts heat slowly, temperature is uneven, fuel factor is poor, and zinc pot local corrosion, many, the zinc consumption height of cadmia, particularly the bottom of a pan heating can make the boiling of zinc liquid, cadmia (mixing) roll, and directly influences product quality; The latter consume energy height, the thermal efficiency is low, the zinc gray growing amount is many, the zinc liquid temperature difference is big.Begin to develop internal heater in recent years, and internal heater was directly immersed zinc liquid inside heat, used Si 3N 4Pottery preparation tubulose internal heater, this ceramic heat transfer efficiency is low, the easy more high shortcoming of crisp, cost.Also there are shortcomings such as fragility is big, cost is high, service life is short in SiC and quartz glass tube internal heater.Find by retrieval, people such as Cao Xiaoming write articles " rare earth element is to the modifying function of pack boriding layer " in the 15th the 4th phase of volume of " Chinese rare-earth journal " December in 1997, this article proposes the boronising metal steel pipe internal heater of development recently can not resist liquid zinc corrosion well, for plasma spraying metal steel pipe internal heater, because coating and expansion of metal coefficient are unworthy of causing coating to be broken, thereby can not resist the corrosion of zinc melt, in addition, the glaze of normal silicate glass and no boron high-content phosphorus can not be resisted the corrosion that zinc melts body.
Summary of the invention: the present invention is directed to the deficiencies in the prior art and defective, provide a kind of viscosity amorphous glass glaze is coated in heater on the metal steel pipe internal heater outer surface, the present invention mainly comprises: electrical heating elements, the electrical heating elements fixed mount, the viscous coating glaze of anti-zinc melt corrosion, the metal steel pipe, filler, concrete connected mode is: electrical heating elements is put into the metal steel pipe, electrical heating elements and fixed mount are welded on an end of metal steel pipe, filler is put into the space between metal steel pipe and the heating element heater, and the viscous coating glaze of anti-zinc melt corrosion is coated in the metallic steel tube outer surface.Metal steel pipe one end opening, end sealing, openend and the welding of electrical heating elements fixed mount.
Operation principle of the present invention is as follows: electrical heating elements is put into the metal steel pipe, then filler is put between metal steel pipe and the heating element heater, then electrical heating elements and fixed mount are welded on metallic steel tube opening one end, at last the metallic steel tube outer surface are carried out glazing.The zinc pot cover socket of this coating metal steel pipe internal heater that has viscosity and can resist zinc melt corrosion from melting industrial-purity zinc directly inserted, connect the power supply of heating element heater subsequently, then internal heater begins the melting industrial-purity zinc that generates heat.
Use can be resisted the high-load B of zinc melt corrosion 2O 3-P 2O 5Amorphous glass glaze coating material utilizes the metal steel pipe as the backing material that melts the zinc internal heater, can increase internal heater heat transfer efficiency, heat shock resistance and mechanical shock ability like this.The stickum (amorphous glass glaze) of anti-zinc melt corrosion is coated in metal steel pipe internal heater outside, when contacting with the zinc melt, this stickum chemical reaction can not take place, in the temperature range of melting zinc, the amorphous glass glaze that is coated on the metallic steel tube outer surface begins to soften and have viscous effect, therefore glaze can stick on the metal steel pipe well like this, uses the metal internal heater melting industrial-purity zinc well that scribbles this coating.
The present invention has substantive distinguishing features and marked improvement, and the present invention is simple in structure, easy to operate, heat transfer efficiency is high, cost is low, coating process is simple, uses this new coating internal heater can energy savings, improves heat and crosses the zinc quality.
Description of drawings: Fig. 1 structural representation of the present invention
The specific embodiment: as shown in Figure 1, the present invention mainly comprises: viscous coating glaze (3), metal steel pipe (4), the filler (5) of electrical heating elements (1), electrical heating elements fixed mount (2), the corrosion of anti-zinc melt, concrete connected mode is: electrical heating elements (1) is put into metal steel pipe (4), electrical heating elements (1) and fixed mount (2) are welded on an end of metal steel pipe (4), filler (5) is put into the space between metal steel pipe (4) and the heating element heater (1), and the viscous coating glaze (3) of anti-zinc melt corrosion is coated in metal steel pipe (4) outer surface.Metal steel pipe (4) one end openings, end sealing, openend and electrical heating elements fixed mount (2) welding.

Claims (2)

1, a kind of heater coated with non-crystal viscose glass enamel, mainly comprise: electrical heating elements (1), electrical heating elements fixed mount (2), the viscous coating glaze (3) of anti-zinc melt corrosion, metal steel pipe (4), filler (5), it is characterized in that concrete connected mode is: electrical heating elements (1) is put into metal steel pipe (4), electrical heating elements (1) and fixed mount (2) are welded on an end of metal steel pipe (4), filler (5) is put into the space between metal steel pipe (4) and the heating element heater (1), and the viscous coating glaze (3) of anti-zinc melt corrosion is coated in metal steel pipe (4) outer surface.
2, this heater coated with non-crystal viscose glass enamel according to claim 1 is characterized in that metal steel pipe (4) one end openings, end sealing, openend and electrical heating elements fixed mount (2) welding.
CN02111235A 2002-04-02 2002-04-02 Heater coated with non-crystal viscose glass enamel Pending CN1387016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN02111235A CN1387016A (en) 2002-04-02 2002-04-02 Heater coated with non-crystal viscose glass enamel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN02111235A CN1387016A (en) 2002-04-02 2002-04-02 Heater coated with non-crystal viscose glass enamel

Publications (1)

Publication Number Publication Date
CN1387016A true CN1387016A (en) 2002-12-25

Family

ID=4741461

Family Applications (1)

Application Number Title Priority Date Filing Date
CN02111235A Pending CN1387016A (en) 2002-04-02 2002-04-02 Heater coated with non-crystal viscose glass enamel

Country Status (1)

Country Link
CN (1) CN1387016A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101765255B (en) * 2010-02-02 2011-08-31 西安交通大学 Immersion type hot-dip plating composite ceramic protecting pipe and preparation method thereof
CN102506429A (en) * 2011-11-07 2012-06-20 西安交通大学 Immersed gas ceramic inner heater sleeve and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2074768U (en) * 1990-02-09 1991-04-10 昆明冶金研究所 Heat zinc-plating device
CN1083654A (en) * 1993-01-07 1994-03-09 哈尔滨荣华家用电器器具厂 High insulating anti-cementation electrothermal tube and manufacturing process thereof
WO1999001011A1 (en) * 1997-06-26 1999-01-07 Eckert C Edward Electric heating element and heater assembly
CN1211894A (en) * 1998-08-21 1999-03-24 河北工业大学 Internal heater with performance of resisting corrosion of molten zinc

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2074768U (en) * 1990-02-09 1991-04-10 昆明冶金研究所 Heat zinc-plating device
CN1083654A (en) * 1993-01-07 1994-03-09 哈尔滨荣华家用电器器具厂 High insulating anti-cementation electrothermal tube and manufacturing process thereof
WO1999001011A1 (en) * 1997-06-26 1999-01-07 Eckert C Edward Electric heating element and heater assembly
CN1211894A (en) * 1998-08-21 1999-03-24 河北工业大学 Internal heater with performance of resisting corrosion of molten zinc

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
景世刚: "金属管道防腐技术动向", 《表面技术》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101765255B (en) * 2010-02-02 2011-08-31 西安交通大学 Immersion type hot-dip plating composite ceramic protecting pipe and preparation method thereof
CN102506429A (en) * 2011-11-07 2012-06-20 西安交通大学 Immersed gas ceramic inner heater sleeve and preparation method thereof
CN102506429B (en) * 2011-11-07 2013-12-04 西安交通大学 Immersed gas ceramic inner heater sleeve and preparation method thereof

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Application publication date: 20021225