Extrusion manufacture technological method of accumulator cell lead ring

A process method and battery technology, applied in the field of manufacturing battery lead rings, can solve the problems of affecting the service life of the battery, poor battery contact, human injury, etc., and achieve the effects of good bite force, reduced production cost, and extended service life.

A process method and battery technology, applied in the field of manufacturing battery lead rings, can solve the problems of affecting the service life of the battery, poor battery contact, human injury, etc., and achieve the effects of good bite force, reduced production cost, and extended service life.

CN101362155AInactive Publication Date: 2009-02-11高学清
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  • Extrusion manufacture technological method of accumulator cell lead ring
  • Extrusion manufacture technological method of accumulator cell lead ring
  • Extrusion manufacture technological method of accumulator cell lead ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The technological method of extruding and manufacturing the battery lead ring uses a hydraulic press; the hydraulic press is provided with a cooling water hole 4 and a heating pipe 6; the specific process is as follows:

[0022] The upper mold 2 is fixedly connected to the upper oil cylinder 1, and the lower mold 5 is fixedly connected to the lower oil cylinder 9 through the ejector rod 7 and the ejector rod connecting plate 8; the temperature of the lower mold is above 50°C;

[0023] 1) Melting lead;

[0024] 2) The hydraulic press drives the upper and lower molds to close and seal by pressure;

[0025] 3) The lead liquid 10 is poured into the mold by gravity through the feeding port 3 of the upper mold; at this time, the cooling temperature of the upper mold is below 300°C, and the ejector pin of the lower mold is in the initial state;

[0026] 4) The lead liquid solidifies for at least 5 seconds;

[0027] 5) Drive the lower mold ejector rod 7 to move upward through...

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Abstract

The invention relates to a technological method for extruding and manufacturing a lead ring of a storage battery, and the method is characterized in that the specific process is as follows: a lower mould is heated to be above 50 DEG C; 1) lead is melted; 2) an upper mould and the lower mould are closed and sealed by pressure; 3) lead liquid is poured into the mould through the feeding port of the upper mold by gravity; at the moment, the cooling temperature of the upper mold is below 300 DEG C; 4) the lead liquid is solidified for at least 5 seconds; 5) the mandril of the lower mould moves upwards and extrudes redundant lead from the feeding port; and 6) the molded lead ring is de-molded. The technological method has the following advantages: as an added lower oil cylinder moves downwards, the oil cylinder extrudes the lead liquid in the process solidification, the produced product has increased inner density and decreased porosity which is less than 1 percent, the product molding property is good and the surface is smooth; as the porosity is low, a permeable channel for acid in the storage battery does not exist, thus reducing bad contact between wire and the lead ring caused by acid permeability effectively and prolonging the service life of the storage battery effectively.

Description

technical field [0001] The invention is a process method for manufacturing battery lead rings. Background technique [0002] The lead ring is widely used in the positive and negative terminals of the battery, and is the conventional contact point for connecting the battery to the engine. The product quality of the lead ring has an important relationship with the performance of the battery. There are two existing processes for producing lead rings. One is the manual pouring process, first melting the lead, then manually pouring the lead liquid into the mold, cooling at room temperature, manual demoulding, and then taking out the workpiece. The lead ring produced by this process has poor formability, unstable quality, and rough surface of the lead ring; due to the manual pouring, the pouring speed is not easy to control, and the pouring speed varies from fast to slow, resulting in temperature changes. The crack phenomenon causes the acid in the battery to penetrate outward ...

Claims

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Application Information

Patent Timeline
11 Feb 2009
Publication
CN101362155A
IPC
B21C23/02; B21C33/02
Inventors
高学清