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Thick film circuit heating part based on minicrystal glass base plate and its making technology

A technology of glass-ceramics and thick-film circuits, which is applied in the direction of electrical components, thick-film resistors, heating element materials, etc., can solve the problems of high power, low cost, high thermal efficiency, etc., to save energy, improve conductivity, and insulation performance Good results

Active Publication Date: 2008-01-16
GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low cost, high power, high thermal efficiency, low power consumption, fast thermal start, uniform temperature field, steel, iron, aluminum, plastic, porcelain, pottery, etc. All kinds of tableware can be heated, and there is no electromagnetic leakage and pollution. Thick-film circuit heating element based on glass-ceramic substrate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] As shown in Figure 1 and Figure 2, a thick-film circuit electric heating element based on a glass-ceramic substrate in the present invention includes a substrate and a series of electronic pastes, and the series of electronic pastes are prepared on the substrate in the form of a thick-film circuit. The series of electronic pastes include packaging pastes and electrode pastes. The series of electronic pastes are composed of three parts: functional phase, inorganic bonding phase and organic carrier. Among them, the substrate is a β-quartz solid solution as the main crystal phase Li 2 O-Al 2 o 3 -SiO 3 -P 2 o 3 -La 2 o 3 System glass-ceramic substrate, the nucleating agent is TiO 2 , ZrO 2 .

[0030] Preparation of Li with β-quartz solid solution as the main crystal phase 2 O-Al 2 o 3 -SiO 3 -P 2 o 3 -La 2 o 3 Rare earth thick film circuit electric heating element of the glass-ceramic substrate of the system:

[0031] According to the glass-ceramic formul...

Embodiment 2

[0050] The difference between this embodiment and the above-mentioned embodiment is that the substrate is CaO-Al with β-wollastonite as the main crystal phase. 2 o 3 -SiO 3 -B 2 o 3 -La 2 o 3 System glass-ceramic substrate, the composition weight ratio of each oxide is: CaO18~38%, Al 2 o 3 5~26%, SiO 2 30-65%, B 2 o 3 2~16%, La 2 o 3 0.3~15%, Co 2 o 3 0.05~6%, TiO 2 1~10%, ZrO 2 1 to 10%.

[0051] Rare earth resistance slurry performance parameter of the present invention:

[0052] ①Electrical properties:

[0053] square resistance

resolution

TCR / ppm / ℃

Aging strength

25±2mΩ / □

0.1mm

1000±150ppm×

10-6 / ℃

>10(N / mm2)

[0054] ②Physical properties

[0055] Rheological properties

Resistance layer thickness

slurry viscosity

Unit dosage

Thixotropic screen printing

12±2μm

160±

20Pas / 10RPM

88cm2 / g

[0056] Rare earth electrode slurry performance param...

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Abstract

The invention discloses a rare earth thick film circuit controllable electroheat (resistor) element based on microcrystalline glass substrate and the preparation method thereof. The element includes a substrate and a series of electric slurry. The electric slurry is formed on the substrate and includes packaging slurry and electrode slurry. Each kind of the electric slurry is composed of three parts: a functional phase, an inorganic binding phase and an organic carrier phase. The electric slurry also includes rare earth resistor slurry. Also disclosed includes a microcrystalline glass substrate, and formulas for packaging slurry, rare earth resistor slurry, and rare earth electrode slurry. The invention has the advantages of vertical heat transmission, uniform and controllable heating temperature field, rapid respond speed, high power density, strong thermal impact resistance, no magnetic leakage, green, environment protection, energy saving, and high safety and reliability.

Description

technical field [0001] The invention relates to the field of electric heating, and more specifically relates to a controllable electric heating element with a thick-film circuit on a glass-ceramic substrate and a preparation process thereof. Background technique [0002] In the sustainable development strategy established by our country, the two aspects involved are environmental protection and improving energy utilization rate and improving energy structure. In the field of electric heating, the new type of heating element requires small size, high power, large surface heat load, small thermal inertia, high thermal efficiency, low power consumption, fast thermal start, uniform temperature field, no Electromagnetic pollution, green, environmental protection, safe and reliable. In recent years, induction cookers have been widely used in my country. However, the National Household Electrical Appliances Quality Supervision and Inspection Center has conducted a thorough test on...

Claims

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Application Information

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IPC IPC(8): H05B3/12H01B1/22C03C10/02
CPCH01C17/06506C03C10/0027C03C4/00H05B3/12C03C8/16C03C10/0036C03C10/0054H01C7/003C03C8/18
Inventor 王晨王克政
Owner GUANGDONGSHENG YUCHEN ELECTRONICS & TECH CO LTD
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