WO2016061909A2

WO2016061909A2 - Stainless steel components for use on heating radiator and manufacturing method for said components

Info

Publication number: WO2016061909A2
Application number: PCT/CN2015/000805
Authority: WO
Inventors: 孙有福; 张泗永; 孙淑慧; 陆郝凌
Original assignee: 枣庄福源环能机械制造有限公司
Priority date: 2014-10-21
Filing date: 2015-11-23
Publication date: 2016-04-28
Also published as: CN104625632B; CN104625632A; CN104289883A; WO2016061909A3

Abstract

Stainless steel components for use on a heating radiator and a manufacturing method for said components are disclosed. The components comprise one upper and one lower horizontal communicating pipe, and further comprise a plurality of parallely arranged vertical pipes; either end of each vertical pipe intercommunicates with the upper and lower horizontal communicating pipes, respectively; the horizontal communicating pipes are provided with inwardly projecting annular flanges; each end of the horizontal communicating pipes is provided with a connector socket by means of an annular coupling disc; the horizontal communicating pipes, the vertical pipes, and the annular coupling discs are all made of thin-wall stainless steel material; the weld-connected stainless steel components tightly adhere to each other and the end surfaces thereof are flush against each other; the components are of suitable height; welding is carried out along end faces, and annular welding joints or strip-shaped welding joints are formed; the welding process is done from the inside outward; welding positions are suited to automatic welding; high-temperature melting is achieved instantly without the addition of welding wires; fusing is done reliably so as to avoid leakage; the welding joints are neat and even; the stainless steel components are especially suitable for thin-wall materials; the annular welding joints and the strip-shaped welding joints are automatically welded; work efficiency is high; and welding quality is ensured.

Description

Stainless steel member for heating radiator and manufacturing method thereof

Technical field

The invention belongs to the technical field of radiators, and in particular relates to a stainless steel component for heating radiators and a manufacturing method thereof. Background technique

At present, composite heat sinks made of different materials have been widely used, and their structural forms are various. Among them, a common composite heat sink member includes two upper and lower horizontal communicating tubes and a plurality of parallel vertical standings. Tubes, two ends of each vertical riser are respectively connected with two transverse communication pipes, and a joint seat is arranged at an end of the transverse communication pipe. The main component of the above composite heat sink may be made of a stainless steel material. In a known prior art, the transverse communication pipe is provided with an outwardly convex annular flange, and the vertical riser is inserted and welded to the transverse communication pipe. Outside the circular flange, or the vertical riser is inserted and welded in the annular flange of the transverse communication pipe. The two through joints, the weld is on the outer surface, affecting the beauty of the stainless steel, when the welding temperature is unstable Especially for thin-walled stainless steel materials, it is easy to produce welding or breakdown, and the heat-conducting medium will penetrate into the gap between the annular flange of the communication pipe and the vertical riser, which may cause erosion of the weld; There is a prior art in which the lateral communication pipe is provided with an annular flange which is inward or outwardly convex, and the vertical riser and the annular flange of the transverse communication pipe are coupled or press-fitted by threads, in order to ensure the ring-turning With a certain mechanical strength, it is necessary to increase the thickness of the stainless steel material used in the transverse communication pipe, thereby increasing the material cost and product weight, while the threaded joint sealing performance is poor. Prone to leaks.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide an improved stainless steel member for a heating radiator and a method of manufacturing the same, in view of the above-described deficiencies of the prior art.

The present invention is implemented as follows:

The utility model relates to a stainless steel component for heating radiator, which comprises two upper and lower transverse communication pipes, and further comprises a plurality of vertical vertical pipes arranged in parallel, the two ends of each vertical riser are respectively connected with the upper and lower transverse communication pipes. The lateral communication tube is provided with an inwardly projecting annular flange, and a joint seat is disposed at an end of the lateral communication tube, wherein the through coupling is a circular insertion of the vertical riser into the lateral communication tube. In the flange, the annular flange of the transverse communication pipe is closely fitted with the pipe wall of the vertical riser, and the end surface of the vertical riser is flush with the end face of the annular flange of the transverse communication pipe, and the annular weld is formed by the end face welding. The vertical riser is made of a stainless steel thin-walled tube which is crimped into a closed cross-sectional shape by a strip-shaped stainless steel sheet and welded along the length direction of the transverse communication tube, the strip for making a transverse communication tube a stainless steel sheet having a pair of outwardly convex strip-shaped cuffs in a lengthwise direction at a closed portion that is crimped into a closed cross-sectional shape, the pair of strip-shaped cuffs having no gap therebetween, the upper end faces being flush, and the strip-shaped cuffs The upper end face is welded into a strip weld.

The closed cross-sectional shape of the transverse communication tube is circular, or semi-circular, or elliptical, or triangular, or square, or trapezoidal.

The inwardly projecting annular flange of the transverse communication tube is a circular flange or an elliptical annular flange, the cross-sectional shape of the vertical riser and the shape of the annular flange of the laterally communicating tube inwardly convex Corresponding.

The end of the transverse communication pipe is provided with a joint seat through an annular coupling plate, and the annular coupling plate made of a stainless steel thin plate is processed with the same inner flange and the outer flange, and the end of the joint with the internal thread is processed by the stainless steel pipe. Inserting the inner flange in the middle of the annular coupling disc, the outer wall of the joint seat closely fits the inner flange of the annular coupling disc, the end surface of the joint seat is flush with the inner flange end surface of the annular coupling disc, and the inner annular weld seam is formed by the end surface welding; the annular joint The disk is inserted into the port of the transverse communication pipe, the outer flange of the annular coupling plate is closely fitted with the port of the transverse communication pipe, the end surface of the transverse communication pipe is flush with the outer flange end surface of the annular coupling plate, and the outer ring welding is formed by the end face welding. Seam.

The height of the annular flange and the strip flange of the transverse communication tube is any size between 1 and 5 mm.

The inner flange and the outer flange of the annular coupling disc have a height of between 1 and 5 mm.

A method for manufacturing a stainless steel member for the above heating radiator includes the following process steps:

First step: The stainless steel strip for the length of the transverse communication tube is placed in the mold and punched into a shape having strip-shaped cuffs on both sides in the longitudinal direction.

The second step: the profile processed in the previous step is punched in the middle along the length direction, so that the lower end thereof forms a U shape, or the shape of the upper end opening of the mouth.

The third step: the profile processed in the second step is punched and stretched along the longitudinal direction on the middle line of the bottom surface to form an inwardly convex annular flange which cooperates with the end of the vertical riser.

The fourth step: punching both ends of the stainless steel tube for making the vertical riser, so that the shape of the end face is adapted to the shape of the inwardly convex annular flanged end face of the transverse communication tube.

Step 5: Insert the two ends of each vertical riser into the inwardly convex annular flanges of the upper and lower transverse communication pipe profiles, and the inwardly projecting annular flanges are tightly connected to the vertical riser pipe wall. Fitted, the end face of the vertical riser is flush with the end face of the annular flange of the transverse communication pipe profile, and the annular weld is formed by the end face welding.

The sixth step: placing the inner core shaft having the set cross-sectional shape along the longitudinal direction of the transverse communication tube into the position belonging to the bottom of the transverse communication tube after completing the fifth step, and the two outer clamps having the set cross-sectional shape The clamping is relatively moved under the action of the pressure strut, so that the two sides of the profile belonging to the transverse communicating pipe are squeezed and closed, the two strip-shaped flanges are kneaded tightly, the end faces are flush, and the strip-shaped weld seam is formed by the end face welding.

Step 7: The outer clamp retracts with the pressure strut and withdraws the inner mandrel.

The eighth step: the annular coupling plate is made of stainless steel plate and the joint seat with internal thread is processed by stainless steel pipe, and the annular coupling plate and the joint seat are respectively welded at the end of the transverse communication pipe.

The beneficial effects and advantages of the present invention are as follows:

The stainless steel member for heating radiator of the present invention only changes the manner of plugging and welding without adding parts and changing the structure, and inserts the vertical riser into the ring of the appropriate height which is inwardly convexly inserted into the transverse communicating tube. In the flange, the annular flange of the transverse communication pipe is closely fitted with the pipe wall of the vertical riser, and the end surface of the vertical riser is flush with the end face of the annular flange of the transverse communication pipe, and the annular weld is formed by the end face welding. Therefore, the built-in weld seam is not exposed, and the gap between the annular flange of the joint pipe and the vertical riser is eliminated; the welded portion of the end face of the transverse flange and the end face of the vertical riser is suitable. Automatic welding, high-temperature melting without welding wire, reliable fusion without leakage, uniform weld uniformity, especially suitable for thin-walled materials.

The transverse communication tube in the present invention is formed by crimping a stainless steel strip into a closed cross-sectional shape and welding along the length direction of the transverse communicating tube, and the stainless steel strip forming the transverse communicating tube has a pair of outward convex portions at the closed portion curled into a closed cross-sectional shape. Strip-shaped flange, no gap between the two strip-shaped flanges, the upper end surface is flush, with appropriate height, welded along the upper end surface of the strip-shaped flange, forming a strip-shaped weld, the welding part is suitable for automatic welding It is instantly melted at high temperature without welding wire, the fusion is reliable and does not leak, and the weld seam is neat and uniform, especially suitable for thin-walled materials.

Similarly, the end of the transverse communication tube is provided with a joint seat by means of an annular coupling disc, using the same welded construction and method, and is particularly suitable for thin wall materials. The cross-sectional shape of the transverse communication tube has various options, the structure is simple, the processing is easy to manufacture, the shape is diverse, and the different aesthetic requirements are adapted.

The manufacturing method of the stainless steel member for heating radiator of the present invention is formulated according to the characteristics of the product structure, wherein the first, second and third steps are the formation of the transverse communicating pipe profile, and the fourth step is the formation of the vertical vertical pipe. The above two aspects of the process can also be carried out simultaneously, laying the foundation for the next assembly welding. In the assembly welding process step, the fifth and sixth steps are technically important, and must be followed in order to achieve the first (ring) Automatic welding is carried out after the weld (stripe weld). Ben The design method of the manufacturing method is reasonable, the number of equipments and molds used is small, and the effect is reliable; the order of the manufacturing method is reasonable, which is beneficial to the automatic welding inside and outside, thereby ensuring the quality of the weld.

The manufacturing method of the invention completely satisfies the manufacturing requirements of the product structure, and can not only ensure the product quality, but also is suitable for mass production. In addition, when the composite heat sink is produced by using the stainless steel member of the present invention, it is only necessary to closely fit the heat dissipating fins on the vertical riser between the fourth step and the fifth step of the process step, when heat is dissipated When the airfoil is an openable assembly structure, the assembly of the composite heat sink can be completed by assembling the heat dissipation fins on the vertical riser after all the process steps are completed, and the process adjustment is very convenient.

By implementing the present invention, the performance of the thin-walled stainless steel material can be fully utilized, and a composite heat sink of various forms and materials can be provided for the market, and the present invention can also be directly used as a heat sink product.

The radiator product produced by the technology of the invention has reliable service life, beautiful appearance, light weight, material and labor cost saving, is suitable for mass production, and has good market prospect.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a stainless steel aluminum composite heat sink assembled by using the stainless steel member of the present invention.

Figure 2 is a cross-sectional view showing the welded structure of the vertical riser and the transverse communication pipe in the present invention.

Figure 3 is a cross-sectional view showing the structure in which the transverse communication pipe and the vertical riser are coupled together in the present invention.

Figure 4 is a partial structural view showing the connection of the transverse communication pipe and the joint seat in the present invention.

Figure 5 is a schematic view showing the structure of the end face formed by the transverse communication tube after the first process step in the present invention.

Figure 6 is a schematic view showing the structure of the end face formed by the transverse communication pipe after the second process step in the present invention.

Figure 7 is a schematic view showing the comparison of the process steps of the sixth step in the present invention.

detailed description

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1, FIG. 2 and FIG. 3, a stainless steel member for a heating radiator includes two horizontally communicating

tubes

1 and 2 having the same upper and lower sides, and a plurality of vertical risers arranged in parallel. 4, the two ends of each vertical riser 4 are respectively connected with the upper and lower

transverse communication pipes

1 and 2, and the horizontal communication pipe is provided with a circular annular flange 3 which is convexly inward, and the annular flange 3 has appropriate the height of. The through coupling is that the vertical riser 4 is inserted into the annular flange 3 which is inwardly convex of the transverse communication pipe, and the annular flange 3 of the transverse communication pipe closely fits the pipe wall of the vertical riser 4, and the vertical riser The end face of 4 is flush with the end face of the annular flange 3 of the transverse communication pipe, and the annular weld is formed by the end face welding. The vertical riser 4 adopts a circular stainless steel thin-walled pipe in this embodiment.

The

transverse communication pipes

1 and 2 have the same structural shape, and are rolled by a stainless steel strip into a closed cross-sectional shape and welded along the length of the transverse communication pipe, wherein the stainless steel strip is strip stainless steel The closed cross-sectional shape of the thin plate and the transverse communication tube may be circular, or semi-circular, or elliptical, or triangular, or square, or trapezoidal, and the embodiment adopts a circular shape. A stainless steel strip for making a transverse communication tube, when crimped in a lengthwise direction into a closed cross-sectional shape, has a pair of outwardly convex strip-shaped cuffs 7 having an appropriate height at the closure, which does not leave between the strip-shaped cuffs 7 The gap, the upper end surface is level-flat, and is welded along the upper end surface of the strip-shaped flange 7, and the formed weld is a strip-shaped weld.

Further, the inwardly projecting annular flange 3 of the transverse communication tube may also be an elliptical annular flange, in which case the cross-sectional shape of the vertical riser 4 corresponding thereto is also elliptical.

As shown in FIG. 4, the end portion of the transverse communication pipe is provided with the joint seat 5 through the annular coupling plate 8, and the annular coupling plate 8 punched with the stainless steel thin plate is machined with the same inner flange 9 and the outer flange 10, with stainless steel tubing. One end of the machined connector seat 5 is inserted into the inner flange 9 in the middle of the annular coupling plate, and the outer wall of the joint 5 is closely fitted with the inner flange 9 of the annular coupling plate, and the end face of the joint 5 and the inner ring of the annular coupling plate 9 The end faces are flush, and the inner annular weld is formed by end face welding; the annular coupling plate 8 is inserted into the port of the

transverse communication pipe

1 or 2, and the outer flange 10 of the annular coupling plate is closely fitted with the port of the transverse communication pipe, and the lateral communication pipe is closely connected The end face is flush with the end face of the everted edge 10 of the annular coupling disk, and the outer annular weld is formed by end face welding. When the closed cross-sectional shape of the transverse communication tube is changed, the peripheral shape of the outer flange 10 of the annular coupling plate is also changed accordingly.

The annular flange 3 and the strip flange 7 of the transverse communication tube and the inner flange 9 and the outer flange 10 of the annular coupling disc have a height of any size between 1 and 5 mm, for example 3.5 mm.

Usually, the stainless steel plate of 2 mm or less is called a stainless steel thin plate, and the thickness of the stainless steel thin-walled pipe is also within 2 mm. The thickness of the stainless steel material used in the present invention can be controlled within 1 mm, for example, 0.5 mm. It is required that the welded thin-walled stainless steel parts are closely fitted, the end faces are flush, have appropriate height, and are welded from the end faces. The welded parts are melted at a high temperature without welding wires, and the welded parts are melted into one body, the welds are uniform and uniform, and the fusion is reliable and does not leak. . The annular weld seam and the strip weld seam in the invention are suitable for automatic welding, and the work efficiency is high, and the welding quality is guaranteed.

A method for manufacturing a stainless steel member for a heating radiator according to the characteristics of the above product structure includes the following process steps:

The first, second and third steps are the formation of the transverse joint pipe profile.

First step: The stainless steel strip for the length of the

transverse communication tube

1 or 2 is placed in a mold and punched into a shape having strip-shaped cuffs 7 on both sides in the longitudinal direction, and the end face shape is shown in Fig. 5.

The second step: the profile processed in the previous step is punched in the middle along the length direction, so that the lower end forms a U The shape of the word, or the shape of the opening at the upper end of the mouth, and the shape of the U-shaped end face are shown in Fig. 6.

The third step: punching the profile processed in the second step along the longitudinal direction on the bottom line of the bottom surface to form an inwardly projecting annular flange 3 which cooperates with the end of the vertical riser 4, and its structural shape is as follows. figure 2.

The fourth step is the formation of a vertical riser.

Fourth step: Both ends of the stainless steel tube for making the vertical riser 4 are punched and sheared so that the shape of the end face is adapted to the shape of the end face of the annular flange 3 which is inwardly convex of the transverse communication tube. The section structure is shown in Figure 2.

The fifth and sixth steps are assembly welding.

The fifth step: inserting the two ends of each vertical riser 4 into the inwardly projecting annular flange 3 of the upper and lower transverse communication pipe profiles, the inwardly projecting annular flange 3 and the vertical riser 4 The tube wall is closely fitted, and the end surface of the vertical riser 4 is flush with the end surface of the annular flange 3 of the transverse communication tube profile, and the endless weld is formed by the end face welding. The section structure is shown in Figure 2.

The sixth step: inserting the inner mandrel 12 having the set cross-sectional shape into the position of the bottom of the transverse communication pipe after completing the fifth step of the process in the longitudinal direction of the transverse communication pipe, and the two having the set cross-sectional shape The

clamps

14 and 15 are relatively moved and moved under the action of the pressure struts 11 and 13, so that the two sides of the profile belonging to the transverse communication pipe 2 are squeezed and closed, and the pair of strip-shaped flanges 7 are kneaded tightly, the end faces are flush, and the end faces are welded. A strip weld is formed. See Figure 2 and Figure 7.

The seventh step: the

outer jigs

14 and 15 are retracted with the pressure struts 11 and 13, and the inner mandrel 12 is withdrawn. Referring to Figure 7, Figure 3 shows the structural section after completion.

The eighth step: punching the annular coupling plate 8 with a stainless steel plate and machining the female threaded joint 5 with a stainless steel pipe, and welding the annular coupling plate 8 and the joint seat 5 at the ends of the transverse communication pipe, respectively. The structure is shown in Figure 4.

The finished product can be used as a heating radiator after surface treatment, or it can be used to continue assembly and become a composite radiator product. When the composite heat sink is produced by using the stainless steel member of the present invention, only the heat dissipating fins of other materials, such as the aluminum heat dissipating fins 6, are tightly nested between the fourth step and the fifth step of the process step. The vertical riser 4 can be used. When the heat dissipating fins 6 are openable and assembled, the heat dissipating fins 6 can be assembled on the vertical water pipes after all the process steps are completed.

The present invention is not limited to the specific embodiments described above, and the above-described embodiments are merely illustrative and not restrictive, and those skilled in the art can, without departing from the scope of the present invention, without departing from the scope of the present invention. Other forms of specific transformations are also possible, which are within the scope of the invention.

Claims

A stainless steel component for a heating radiator, comprising two upper and lower transverse communicating pipes (1, 2), further comprising a plurality of vertically arranged vertical risers (4), two of each vertical riser (4) The end is respectively connected with the upper and lower transverse communication pipes (1, 2), the lateral communication pipe is provided with an inwardly protruding annular flange (3), and the end of the transverse communication pipe is provided with a joint seat (5). The utility model is characterized in that: the through coupling is a vertical riser (4) inserted into the annular flange (3) which is inwardly convex of the transverse communication pipe, the annular flange (3) of the transverse communication pipe and the vertical riser (4) The pipe wall is closely fitted, the end face of the vertical riser pipe (4) is flush with the end face of the annular flange (3) of the transverse communication pipe, and the annular weld is formed by the end face welding, and the vertical riser pipe (4) is made of stainless steel. The thin-walled tube is formed by crimping a strip-shaped stainless steel sheet into a closed cross-sectional shape and welding along the length direction of the transverse communicating tube, and the strip-shaped stainless steel sheet for making the transverse communicating tube is curled into a closed section along the length direction. The shape of the closure has a pair of outwardly convex strip-shaped flanges (7), and there is no gap between the pair of strip-shaped flanges (7). Surface flush with the end face seam welded strip on the strip along the flange.
A stainless steel member for a heating radiator according to claim 1, wherein the cross-sectional shape of the transverse communication tube is circular, or semi-circular, or elliptical, or triangular. Either square or trapezoidal.
A stainless steel member for a heating radiator according to claim 1, wherein the inwardly projecting annular flange (3) of the transverse communication tube is a circular flange or an elliptical ring The cross-sectional shape of the vertical riser (4) corresponds to the shape of the inwardly projecting annular flange (3) of the transverse communication tube.
A stainless steel component for a heating radiator according to claim 1, characterized in that the end of the transverse communication pipe is provided with a joint seat (5) through an annular coupling plate (8), and a ring made of a stainless steel thin plate The coupling disc (8) is machined with the same inner flange (9) and the outer flange (10), and the internally threaded joint (5) machined with stainless steel tubing is inserted into the inner flange of the middle of the annular coupling disc ( 9), the outer wall of the joint seat (5) is closely fitted with the inner flange (9) of the annular joint disc, and the end surface of the joint seat (5) is flush with the end surface of the flange (9) of the annular joint disc, and the inner ring is formed by the end face welding. Weld seam; the annular coupling plate (8) is inserted into the port of the transverse communication pipe, and the outer flange (10) of the annular coupling plate is closely fitted with the port of the transverse communication pipe, and the end face of the transverse communication pipe and the outer flange of the annular coupling plate ( 10) The end faces are flush and the outer ring welds are formed by end face welding.
A stainless steel member for a heating radiator according to claim 1, characterized in that the annular flange (3) and the strip flange (7) of the transverse communication tube have a height of 1 to 5 mm Any size between.
A stainless steel member for a heating radiator according to claim 4, wherein the inner flange (9) and the outer flange (10) of the annular coupling disc have a height of between 1 and 5 mm Any of the feet Inch.
A method of manufacturing a stainless steel member for use in a heating radiator according to claim 1, comprising the following process steps:

First step: The stainless steel strip for the length of the transverse communication tube is placed in the mold and punched into a shape having strip-shaped cuffs on both sides in the longitudinal direction.

The second step: the profile processed in the previous step is punched in the middle along the length direction, so that the lower end thereof forms a U shape, or the shape of the upper end opening of the mouth.

The third step: the profile processed in the second step is punched and stretched along the longitudinal direction on the middle line of the bottom surface to form an inwardly convex annular flange which cooperates with the end of the vertical riser.

The fourth step: punching both ends of the stainless steel tube for making the vertical riser, so that the shape of the end face is adapted to the shape of the inwardly convex annular flanged end face of the transverse communication tube.

Step 5: Insert the two ends of each vertical riser into the inwardly convex annular flanges of the upper and lower transverse communication pipe profiles, and the inwardly projecting annular flanges are tightly connected to the vertical riser pipe wall. Fitted, the end face of the vertical riser is flush with the end face of the annular flange of the transverse communication pipe profile, and the annular weld is formed by the end face welding.

The sixth step: placing the inner core shaft having the set cross-sectional shape along the longitudinal direction of the transverse communication tube into the position belonging to the bottom of the transverse communication tube after completing the fifth step, and the two outer clamps having the set cross-sectional shape The clamping is relatively moved under the action of the pressure strut, so that the two sides of the profile belonging to the transverse communicating pipe are squeezed and closed, the two strip-shaped flanges are kneaded tightly, the end faces are flush, and the strip-shaped weld seam is formed by the end face welding.

Step 7: The outer clamp retracts with the pressure strut and withdraws the inner mandrel.

The eighth step: the annular coupling plate is made of stainless steel plate and the joint seat with internal thread is processed by stainless steel pipe, and the annular coupling plate and the joint seat are respectively welded at the end of the transverse communication pipe.