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Lead-free stainless steel-based heating resistance slurry and preparation method thereof

A heating resistor, stainless steel technology, applied in conductive materials dispersed in non-conductive inorganic materials, cable/conductor manufacturing, circuits, etc., can solve the problems of low economic efficiency and high slurry cost, and achieve high economic efficiency and electrical conductivity. Good and environmentally friendly performance

Active Publication Date: 2019-08-02
DONGGUAN COREHELM ELECTRONICS MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The slurry can meet the index requirements to a certain extent, but ruthenium is a precious metal and the price is 30,000 to 40,000 per kilogram, so the cost of the slurry is extremely high and the economic benefit is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A lead-free stainless steel-based heating resistor slurry, in terms of mass percentage, consists of the following components:

[0050] Composite functional phase 50%

[0051] Inorganic binder phase 25%

[0052] Organic vehicle 25%;

[0053] The composite functional phase consists of the following components in terms of mass percentage:

[0054] Molybdenum disilicide powder 85%

[0055] Nickel powder 15%.

[0056] Wherein, the inorganic bonding phase is lead-free glass powder, and is composed of the following components in terms of mass percentage:

[0057] SiO 2 38%

[0058] CaO 26%

[0059] Ti 2 O 10%

[0060] Al 2 o 3 15%

[0061] Na 2 O 7%

[0062] Bi 2 o 3 4%.

[0063] Wherein, the preparation method of the inorganic binder phase is as follows: mixing the oxides according to the proportion, melting at 1500°C for 6 hours, water quenching, ball milling with distilled water as the medium for 8 hours, and drying to obtain the Lead-free glass powder....

Embodiment 2

[0074] A lead-free stainless steel-based heating resistor slurry, in terms of mass percentage, consists of the following components:

[0075] Composite functional phase 45%

[0076] Inorganic binder phase 30%

[0077] Organic vehicle 25%;

[0078] The composite functional phase consists of the following components in terms of mass percentage:

[0079] Molybdenum disilicide powder 75%

[0080] Nickel powder 25%.

[0081]Wherein, the inorganic bonding phase is lead-free glass powder, and is composed of the following components in terms of mass percentage:

[0082] SiO 2 35%

[0083] CaO 30%

[0084] Ti 2 O 10%

[0085] al 2 o 3 14%

[0086] Na 2 O 9%

[0087] Bi 2 o 3 2%.

[0088] Wherein, the preparation method of the inorganic binder phase is as follows: mix the oxides in proportion, melt at 1400° C. for 7 hours, water quench, ball mill, and dry to obtain the lead-free glass powder.

[0089] Wherein, the particle size of the lead-free glass powder is 1-3 μ...

Embodiment 3

[0099] A lead-free stainless steel-based heating resistor slurry, in terms of mass percentage, consists of the following components:

[0100] Composite functional phase 55%

[0101] Inorganic binder phase 20%

[0102] Organic vehicle 25%;

[0103] The composite functional phase consists of the following components in terms of mass percentage:

[0104] Molybdenum disilicide powder 95%

[0105] Nickel powder 25%.

[0106] Wherein, the inorganic bonding phase is lead-free glass powder, and is composed of the following components in terms of mass percentage:

[0107] SiO 2 45%

[0108] CaO 25%

[0109] Ti 2 O 10%

[0110] al 2 o 3 13%

[0111] Na 2 O 5%

[0112] Bi 2 o 3 2%.

[0113] Wherein, the preparation method of the inorganic binder phase is as follows: mix the oxides in proportion, melt at 1600° C. for 5 hours, water quench, ball mill, and dry to obtain the lead-free glass powder.

[0114] Wherein, the particle size of the lead-free glass powder is 1-3 ...

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Abstract

The invention relates to the technical field of resistance slurry, in particular to a lead-free stainless steel-based heating resistance slurry and a preparation method thereof. The resistance slurryis composed of a composite functional phase, an inorganic adhesive phase and an organic carrier, and the composite functional phase is composed of molybdenum disilicide powder and nickel powder. The prepared thick film circuit resistance slurry has good electric conductivity, high adhesive force, good solderability, good solder solubility resistance, good printing property, sintering property andenvironmental protection property and is matched with the stainless steel base and has good wettability and compatibility with dielectric slurry and electrode slurry.

Description

technical field [0001] The invention relates to the technical field of resistance paste, in particular to a lead-free stainless steel-based heating resistance paste and a preparation method thereof. Background technique [0002] In the field of electric heating, new heating elements require small volume, high power, small thermal inertia, large surface heat load, low power consumption, high thermal efficiency, fast thermal start, stable power, uniform temperature field, and process Good performance, automatic temperature control of the body, safe and reliable operation, long life and wide application range. Electrode paste is the key material for packaging, electrodes and interconnection of electronic components, and mainly includes two categories: burn-in type electrode paste and curable conductive adhesive. Electrode paste can be divided into carbon paste (graphite conductor), metal paste (gold powder, silver powder, copper powder, silver-copper alloy) and modified cerami...

Claims

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Application Information

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IPC IPC(8): H01B1/16H01B1/22H01B13/00
CPCH01B1/16H01B1/22H01B13/00
Inventor 张晓飞苏冠贤廖玉超周嘉念廖朝兴孙永涛
Owner DONGGUAN COREHELM ELECTRONICS MATERIAL TECH CO LTD
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