CN205271265U

CN205271265U - Welding is with heat dissipation anchor clamps

Info

Publication number: CN205271265U
Application number: CN201521020207.1U
Authority: CN
Inventors: 丁辉; 李兵; 郭晓东; 孙明刚
Original assignee: 404 Co Ltd China National Nuclear Corp
Current assignee: 404 Co Ltd China National Nuclear Corp
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2016-06-01
Anticipated expiration: 2025-12-09

Abstract

The utility model relates to an aluminum alloy sealed container's special welding process method, concretely relates to welding is with heat dissipation anchor clamps, being located the heat dissipation including a heat dissipation ring sum and encircling two outside semiorbicular clamp rings, two clamp rings pass through clamp bolt and connect, the outer fringe at the need welded vessel is installed to the heat dissipation ring, and the heat conductivity of heat dissipation ring is greater than the heat conductivity of container, the clamp ring is located the upper end parallel and level of heat dissipation ring outside, upper end and heat dissipation ring to make the heat dissipation ring hug closely on the container through the clamp bolt that screws. The utility model discloses an effect lies in: above -mentioned heat dissipation anchor clamps have two major effects when the welding: first, a large amount of heats that the molten bath produced can in time conduct through the heat dissipation ring of fine copper, prevent that the temperature risees at the excessive speed on container body thin wall, the second, there is fine supporting role heat dissipation ring upper end and container body thin wall parallel and level to it, even the temperature is higher when leading to container body strength of material to descend, also can guarantee not take place to collapse the limit phenomenon.

Description

A kind of welding cooling clamper

Technical field

The utility model relates to the special welding technique of a kind of aluminium alloy sealed vessel, is specifically related to a kind of welding cooling clamper.

Background technology

The welding material that existing thin-walled Structure type container often relates in welding is mainly based on carbon steel, stainless steel, their welding process, technique there is comparatively thorough research, and the thin-walled structure welding for aluminium alloy does not have enough welding experiences to follow, it does not have to the systematic Study of its weldprocedure. Aluminum alloy materials itself belongs to difficult welding material, this physics with aluminium alloy own, chemical property relevant (see table 1, table 2), this kind resistivity of material is little, coefficient of linear expansion is big, causing the problem in actual welding process mainly to comprise welded joints in aluminium alloy specific strength low, weld pool surface easily produces difficult molten oxide film (Al₂O₃Fusing point is 2060 DEG C), molten bath easily produces pore, welded heat affecting zone easily produces thermal crack, easily produces welding distortion, and aluminum alloy materials thermal conductivity is big, has to pass through long-time preheating before welding. Especially for thin-walled structure, in workpiece preheating and welding process, turned-down edge phenomenon often occurs. In principle, there is turned-down edge in welding process, mainly because tank body of container wall thickness less, and next-door neighbour molten bath, in the molten bath in a big chunk heat can be directly conducted to tank body of container, and aluminium alloy in high temperature environments intensity can decline to a great extent. In welding process, weld pool surface zone of oxidation can hinder operator bath temperature change correctly to be judged by features such as molten bath colors, and bath temperature slightly raises and tank body of container just can be caused to be heated excessively, decrease in intensity, causes turned-down edge. This is normal produced problem during aluminium alloy class thin wall vessel welds. Therefore, wanted the welding of this type of container, it is desirable to provide one is effectively dispelled the heat instrument, is conducted as early as possible by the too much heat importing tank body of container into, reduced container thin-walled structure temperature, reduced container as far as possible and turned-down edge phenomenon occurs in welding process.

Summary of the invention

The purpose of this utility model is easily to occur in welding process the technical problem of turned-down edge phenomenon for aluminium alloy thin-walled container, it is provided that a kind of welding cooling clamper.

Realize the technical scheme of the utility model object:

A kind of welding cooling clamper, comprises a heat dissipating ring and is positioned at the clamp ring of two semi-circulars of heat dissipating ring outside, and two clamp rings are connected by push bolt; Described heat dissipating ring is arranged on the outer rim needing welded vessel, and the thermal conductivity of heat dissipating ring is greater than the thermal conductivity of container; Described clamp ring is positioned at heat dissipating ring outside, and upper end is concordant with the upper end of heat dissipating ring, and by screwing push bolt, heat dissipating ring is close on container.

The material of described heat dissipating ring is fine copper.

On described heat dissipating ring along with need welded vessel on along concordant.

Effect of the present utility model is:

Cooling clamper of the present utility model has two and acts on greatly when welding: the first, and a large amount of heats that molten bath produces can be conducted in time by the heat dissipating ring of fine copper, prevents temperature on tank body of container thin-walled from raising too fast; 2nd, heat dissipating ring upper end is concordant with tank body of container thin-walled, and it has good support structure effect, even if temperature is higher when causing the tank body of container strength of materials to decline to a great extent, it is possible to ensure turned-down edge phenomenon.

Accompanying drawing explanation

Fig. 1 is the sectional view of the utility model structure;

Fig. 2 is the vertical view of the utility model structure;

In figure, 1-heat dissipating ring, 2-clamp ring, 3-push bolt, 4-container.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

Present embodiments providing a kind of welding cooling clamper, as depicted in figs. 1 and 2, clamp ring 2, two clamp rings 2 comprising a heat dissipating ring 1 and two semi-circulars being positioned at heat dissipating ring 1 outside are connected its structure by push bolt;

Described heat dissipating ring 1 is fine copper material, is arranged on the outer rim needing welded vessel 4, upper edge with need welded vessel on along concordant; Owing to the thermal conductivity of fine copper is approximately the 170% of aluminium, therefore, heat dissipating ring 1 can fully effectively realize thermal conduction, thus reduces tank body of container thin-walled temperature.

It is outside that described clamp ring 2 is positioned at heat dissipating ring 1, and upper end is concordant with the upper end of heat dissipating ring 1, and ensures that heat dissipating ring 1 can be close on container by screwing push bolt 3.

When welding, cooling clamper can play two and act on greatly: the first, and a large amount of heats that molten bath produces can be conducted in time by the heat dissipating ring of fine copper, prevents temperature on tank body of container thin-walled from raising too fast; 2nd, heat dissipating ring upper end is concordant with tank body of container thin-walled, and it has good support structure effect, even if temperature is higher when causing the tank body of container strength of materials to decline, it is possible to ensure turned-down edge phenomenon.

Obviously, the utility model can be carried out various change and modification and not depart from spirit and scope of the present utility model by the technician of this area. If these amendments and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these change and modification.

Claims

1. a welding cooling clamper, it is characterized in that: comprising a heat dissipating ring (1) and be positioned at the clamp ring (2) of two outside semi-circulars of heat dissipating ring (2), two clamp rings (2) are connected by push bolt (3); Described heat dissipating ring (1) is arranged on the outer rim needing welded vessel (4), and the thermal conductivity of heat dissipating ring (1) is greater than the thermal conductivity of container (4); It is outside that described clamp ring (2) is positioned at heat dissipating ring (1), upper end is concordant with the upper end of heat dissipating ring (1), and by screwing push bolt (3), heat dissipating ring (1) is close on container (4).

2. a kind of welding cooling clamper as claimed in claim 1, it is characterised in that: the material of described heat dissipating ring (1) is copper.

3. welding cooling clamper as claimed in claim 1 a kind of, it is characterised in that: described heat dissipating ring (1) upper along with need welded vessel on along concordant.