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Heat treatment process for jack of electric connector

An electrical connector, heat treatment furnace technology, applied in the direction of contact manufacturing and other directions, can solve the problems of poor elastic stability, not meeting the requirements of technical conditions, insufficient heat, etc., to improve elasticity and elastic stability, improve product dimensional stability, The effect of improving production efficiency

Active Publication Date: 2012-02-08
GUIZHOU AEROSPACE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing jack heat treatment process is as follows: first close the opening slot of the jack, usually use Φ0.2mm low-carbon steel wire to bind the opening slot so that the four openings at the opening touch each other, and when the steel wire is used to close the opening, the closing effect will be improved. Bad, there is always a certain gap at the opening, and the closing is uneven. In addition, different operators have different degrees of tightness of the binding, and the closing gap is uneven, resulting in low insertion force after the heat treatment of the jack and even does not meet the technical requirements. When the hole is heat-treated and shaped, the steel wire is loosened due to thermal expansion, causing uneven or reduced force or even no force on the closing part of the socket, resulting in low or even unqualified insertion and withdrawal force after heat treatment and shaping
On the other hand, the current method of entering the furnace for the heat treatment of the jack hole is to enter the furnace at high temperature. Because there will be a large heat loss during the operation of entering the furnace, the furnace temperature will drop rapidly, and because the general heat treatment holding time starts from the time of entering the furnace. Timing, insufficient heat preservation time, insufficient heat, resulting in incomplete elimination of internal stress, poor dimensional stability, poor elastic stability, low insertion force, which affects the final quality of heat treatment and shaping, and the insertion force cannot meet the technical requirements of 2.45N

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Design and process special closing tooling to close the opening of the jack to ensure good closing and uniform force. The closing tooling is a plate, made of 45# steel, and 91 closing holes are opened. After the processing is completed and treated with bluing, it is stored in 20# engine oil for later use. A pair of tooling can meet the heat treatment of 91 workpieces at the same time. The closing tooling must not only ensure that the opening of the socket has a good closing effect without gaps, but also make the stress on each socket uniform;

[0018] 2. Clean the socket with gasoline first, then clean it with absolute ethanol until it is clean, and let it dry naturally;

[0019] 3. Put the jack into the closing tooling, insert the mouth of the jack into the closing tooling, and make sure that the four openings of the jack touch each other to form a closed ring without gaps;

[0020] 4. After the temperature of the heat treatment furnace reaches 250-320 °C, put the ...

Embodiment 2

[0023] 1. According to Example 1, design and process the special closing tooling. The closing tooling plate is made of 45# steel, and 91 closing holes are opened. After the processing is completed and processed by bluing, it is stored in 20# engine oil for later use.

[0024] 2. Clean the socket with gasoline first, then clean it with absolute ethanol until it is clean, and let it dry naturally;

[0025] 3. Put the jack into the closing tooling, insert the mouth of the jack into the closing tooling, and make sure that the four openings of the jack touch each other to form a closed ring without gaps;

[0026] 4. After the temperature of the heat treatment furnace reaches 290±10°C, put the closing tooling together with the inserted socket into the heat treatment equipment for heat treatment. The temperature drops due to the insertion of the socket into the furnace, and the furnace temperature rises to 290±10°C. °C to start timing, keep the temperature at 290±10 °C for 3 hours, a...

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Abstract

The invention discloses a heat treatment process for a jack of an electric connector, which comprises the following steps that: a special opening-shrinking tool is adopted to carry out hole-shrinking on the jack; after the furnace temperature for heat treating reaches 290+ / -10 DEG C, the opening-shrinking tool and the embedded jack are fed into a furnace to be subjected to heat treatment; after the furnace temperature rises to 290+ / -10 DEG C again, timing is started; and heat preservation is carried out at the furnace temperature of 290+ / -10 DEG C for 3 hours, and then discharging and air cooling are carried out. According to the invention, the opening-shrinking effect of the opening part of the jack is favorable without a clearance, the jack is stressed evenly, the insertion and extraction force of the jack is no less than 2.45N, the connecting requirement of the electric connector is met, the connection is firm, the time is saved, the efficiency is high, and the signal is stable.

Description

technical field [0001] The invention relates to a heat treatment process for an electrical connector socket, and belongs to the technical field of heat treatment processing of electrical connectors. Background technique [0002] The jack is one of the key connecting parts of the radio control system. There are four opening slots in the opening. It is required that after the machining is completed, heat treatment and shaping should be carried out after the mouth is closed to touch, so as to eliminate the internal stress generated by the machining of the jack and ensure stability. Dimensions, to obtain good elasticity and elastic stability, to meet the technical requirements of insertion force not less than 2.45N. The existing jack heat treatment process is as follows: first close the opening slot of the jack, usually use Φ0.2mm low-carbon steel wire to bind the opening slot so that the four openings at the opening touch each other, and when the steel wire is used to close the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R43/16
Inventor 田叶青
Owner GUIZHOU AEROSPACE ELECTRONICS TECH
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