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Novel fastening connection method and device for sacrificial anode assembly

A sacrificial anode and fastening connection technology, which is applied in the field of sacrificial anode assembly technology, can solve the problems of falling off, loose connection shaft, shortened life of water heater, etc., and achieve the effect of uniform fastening deformation, uniform deformation and firm connection

Inactive Publication Date: 2015-03-18
GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the production, transportation, installation and use of the sacrificial anode, the anode rod, screw rod, nut and other forms of connecting shafts are prone to loosening and falling off, so that the sacrificial anode and the inner tank cannot be fully connected or completely separated. As a result, the sacrificial anode cannot protect the inner tank, which eventually reduces the life of the inner tank and shortens the life of the water heater

Method used

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  • Novel fastening connection method and device for sacrificial anode assembly
  • Novel fastening connection method and device for sacrificial anode assembly
  • Novel fastening connection method and device for sacrificial anode assembly

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as Figure 3-1 with Figure 3-2 Shown is an embodiment of the fastening and connection method of the present invention. The sacrificial anode 6 to be assembled includes an anode rod 6-3, a sealing buffer cap 6-2 and a nut 6-1. The device of the present invention is used for fastening connection.

[0035] 1. Install the mold 5 for the test piece with a diameter of 70mm, adjust the tightening pressure of the sliding sleeve 3 to 0.2MPa, adjust the upper stroke of the sliding sleeve 3 to 10mm, and the lower stroke to 0mm;

[0036] 2. Place the end of the nut 6-1 of the sacrificial anode 6 on the top of the positioning block 1, adjust the position of the positioning block 1 to 0mm, so that the crimping head of the mold 5 can be crimped to the unthreaded part of the nut 6-1 ;

[0037] 3. The sliding sleeve 3 starts to move up and down to make the mold sleeve 4 tighten or loosen in the radial direction, and drive the mold 5 to tighten or loosen in the radial direction to comple...

Embodiment 2

[0039] Such as Pic 4-1 with Figure 4-2 Shown here is another embodiment of the fastening and connection method of the present invention. The sacrificial anode 7 to be assembled includes an anode rod 7-2 and a connecting shaft 7-1, and the device of the present invention is used for fastening and connection.

[0040] 1. Install the mold 5 for the test piece with a diameter of 30mm, adjust the tightening pressure of the sliding sleeve 3 to 30MPa, adjust the upper stroke of the sliding sleeve 3 to 30mm, and the lower stroke to 0mm;

[0041] 2. Place the end of the connecting shaft 7-1 of the sacrificial anode 7 flat on the positioning block 1, adjust the position of the positioning block 1 to 50mm, so that the crimping head of the mold 5 is pressed on the connecting shaft 7-1, and the outer edge of the crimping head is away 1mm part of connecting shaft 7-1 port;

[0042] 3. The sliding sleeve 3 starts to move up and down to make the mold sleeve 4 tighten or loosen in the radial direct...

Embodiment 3

[0044] Such as Figure 5-1 with Figure 5-2 Shown here is another embodiment of the fastening connection method of the present invention. The sacrificial anode 8 to be assembled includes an anode rod 8-2 and a screw rod 8-1, and the device of the present invention is used for fastening connection.

[0045] 1. Install the mold 5 for the test piece with a diameter of 8mm, adjust the tightening pressure of the sliding sleeve 3 to 3MPa, adjust the upper stroke of the sliding sleeve 3 to 60mm, and the lower stroke to 0mm;

[0046] 2. Place the end connecting the sacrificial anode 8 and the screw 8-1 flat on the positioning block 1, adjust the position of the positioning block 1 to 400mm, so that the crimping head of the mold 5 is pressed on the anode rod 8-2, and the outer edge of the crimping head The part 3mm away from the 8-2 screw port of the anode rod;

[0047] 3. The sliding sleeve 3 starts to move up and down to make the mold sleeve 4 tighten or loosen in the radial direction, and...

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Abstract

The invention relates to a novel fastening connection method and device for sacrificial anode assembly. According to the novel fastening connection method and the novel fastening connection device, a sacrificial anode to be assembled is placed on a location block, a support block is fixed on an equipment base, a slide sleeve sleeves the support block and is capable of moving up and down, the slide sleeve moves up and down so that a die sleeve performs a tightening movement or a releasing movement along a radial direction, and a die is driven to perform a tightening movement or a releasing movement along the radial direction, so as to fasten the sacrificial anode placed on the location block. According to the novel fastening connection method and the novel fastening connection device disclosed by the invention, a hydraulic pressure or an air pressure is used as a power for pushing the die sleeve to move up and down, and thus the movements of eight petals of fastening dies with the same structure are the same, the fastening forces are the same, the deformations of the fastened elements are uniform, and the connection is firm; adjustments for a fastening tightening amount and a fastening releasing amount are realized through the stroke changes of the slide sleeve, the fastening dies are replaceable, and various fastening connection requirements on the anode bar of the sacrificial anode, and a screw, a nut as well as other forms of connection shafts can be realized.

Description

Technical field [0001] The invention relates to a new type of fastening connection method and device for assembling sacrificial anode, in particular to a fastening connection method and device of sacrificial anode anode rod and screw rod, nut and other forms of connecting shaft, so that the anode rod and wire The connection of rods, nuts and other forms of connecting shafts is not easy to loose and fall off, and the connection between the sacrificial anode and the inner tank is firmer, and belongs to the field of sacrificial anode assembly technology. Background technique [0002] In addition to heat preservation and pressure resistance, the inner tank of volumetric water heaters (including electric water heaters) must also have rust-proof, anti-corrosion and impermeable properties. Once the inner tank is corroded and broken down, it will leak water to make the water heater safe The coefficient is greatly reduced, and the water heater is scrapped. One of the key factors of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F13/18
Inventor 史学栋温军国马志新
Owner GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS BEIJNG
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