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Processing method of spark plug cap wire wound resistance

A technology of wire-wound resistors and processing methods, which is applied to spark plugs, wound resistor elements, circuits, etc., can solve the problems of non-conduction and easy falling off of wire-wound resistors, and achieve beautiful wire-wound resistors, firm connections, and easy transformation Effect

Active Publication Date: 2016-07-06
CHONGQING CONGREN ELECTROMECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The welding process between the alloy wire and the metal cap is spot welding. Since spot welding is prone to false welding or false welding in the frequent production process, the spot welding between the alloy wire and the metal cap will be damaged during the use of the wirewound resistor. Easy to fall off, resulting in non-conduction of the winding resistor

Method used

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  • Processing method of spark plug cap wire wound resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] like figure 1 As shown, this embodiment includes the following steps:

[0018] 1) Punching a 0.27mm thick chromium plate to form a metal cap 2, and press-fitting the metal cap 2 to both ends of the porcelain rod 1;

[0019] 2) Wrap the alloy wire 3 on the body of the porcelain rod 1, so that the two ends of the alloy wire 3 correspond to the two metal caps 2 one by one, and the ends of the alloy wire 3 are welded to the corresponding metal caps 2 by spot welding;

[0020] 3) Apply silver-copper paste to the joint between the alloy wire 3 and the metal cap 2, and then bake in an oven for 25 minutes at a temperature of 75°C, so that the silver-copper paste is solidified to form silver-copper A paste layer 4, a short section of the alloy wire 3 near the end is bonded and fixed on the metal cap 2 through the silver-copper paste layer 4;

[0021] 4) Continuously coat high-temperature paint three times on the outside of the open end of the metal cap 2 and the body of the po...

Embodiment 2

[0023] like figure 1 As shown, this embodiment includes the following steps:

[0024] 1) Punching a 0.3mm thick chromium plate to form a metal cap 2, and press-fitting the metal cap 2 to both ends of the porcelain rod 1;

[0025] 2) Wrap the alloy wire 3 on the body of the porcelain rod 1, so that the two ends of the alloy wire 3 correspond to the two metal caps 2 one by one, and the ends of the alloy wire 3 are welded to the corresponding metal caps 2 by spot welding;

[0026] 3) Apply silver-copper paste to the joint between the alloy wire 3 and the metal cap 2, and then bake in an oven for 30 minutes at a temperature of 70°C, so that the silver-copper paste is solidified to form silver-copper A paste layer 4, a short section of the alloy wire 3 near the end is bonded and fixed on the metal cap 2 through the silver-copper paste layer 4;

[0027] 4) Continuously coat high-temperature paint three times on the outside of the open end of the metal cap 2 and the body of the por...

Embodiment 3

[0029] like figure 1 As shown, this embodiment includes the following steps:

[0030] 1) Punching a 0.33mm thick chrome plate to form a metal cap 2, and press-fitting the metal cap 2 to both ends of the porcelain rod 1;

[0031] 2) Wrap the alloy wire 3 on the body of the porcelain rod 1, so that the two ends of the alloy wire 3 correspond to the two metal caps 2 one by one, and the ends of the alloy wire 3 are welded to the corresponding metal caps 2 by spot welding;

[0032] 3) Apply silver-copper paste to the joint between the alloy wire 3 and the metal cap 2, and then bake in an oven for 35 minutes at a temperature of 65°C, so that the silver-copper paste is solidified to form silver-copper A paste layer 4, a short section of the alloy wire 3 near the end is bonded and fixed on the metal cap 2 through the silver-copper paste layer 4;

[0033] 4) Continuously coat high-temperature paint three times on the outside of the open end of the metal cap 2 and the body of the porc...

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Abstract

The invention discloses a processing method for a spark plug cap wire-wound resistor, which comprises: 1) press-fitting a metal cap (2) on both ends of a porcelain rod (1); 2) winding an alloy wire on the body of the porcelain rod (1) (3), the end of the alloy wire (3) is welded on the corresponding metal cap (2); 3) silver-copper paste is coated at the welding place of the alloy wire (3) and the metal cap (2), and the silver-copper paste Form the silver-copper paste layer (4) after curing; 4) coat the high-temperature paint on the outside of the open end of the metal cap (2) and the rod body of the porcelain rod (1) between the two metal caps (2), and then send it into the Bake in an oven to cure the high-temperature paint to form a high-temperature paint layer (5). The invention uses silver-copper paste to bond the gold wire and the metal cap, which can ensure the reliability of the connection between the alloy wire and the metal cap without damaging the alloy wire, thereby effectively improving the conduction performance of the wire-wound resistor and having the advantages of It has the characteristics of ingenious design, simple structure, easy transformation and low transformation cost.

Description

technical field [0001] The invention relates to a spark plug cap part, in particular to a processing method for a wire-wound resistor on the spark plug cap. Background technique [0002] Spark plug cap is an important part of automobiles, motorcycles and general machines. It is used to connect high-voltage wires and spark plugs. Its quality directly affects the starting performance of automobiles, motorcycles or general machines. The wire-wound resistance is installed in the spark plug cap, which is composed of a porcelain rod, an alloy wire and a metal cap. The metal cap is pressed on both ends of the porcelain rod, and the alloy wire is wound on the porcelain rod. metal cap. The welding process between the alloy wire and the metal cap is spot welding. Since spot welding is prone to false welding or false welding in the frequent production process, the spot welding between the alloy wire and the metal cap will be damaged during the use of the wirewound resistor. It is eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01T13/40H01C17/04
Inventor 李从仁
Owner CHONGQING CONGREN ELECTROMECHANICAL