JPS59199186A - Solid phase joining device - Google Patents

Abstract

PURPOSE:To provide a titled solid phase joining device which can improve efficiency of solid phase joining and decreases thermal influence in the stage of solid phase joining by providing respectively separately force-cooling parts to the 1st and 2nd chucks which hold a pair of objects to be joined and press axially said objects as well as a splittable deformation-restraining jig covering the joint part of the objects to be joined. CONSTITUTION:A pair of objects 5, 5 to be joined are respectively grapsed by means of a chuck 2 and a chuck 3 and the joint part 5a is set between the upper jig 10a and lower jig 10b of a deformation restraining jig 4. After the entire part of the device is maintained in a vacuum or inert atmosphere or the like, electricity is fed to sheathed heaters 16-, to heat the jig 4 thereby heating the objects 5, 5. Cooling water is passed at the same time to the cooling holes 15- of upper chucks 6, 6 and lower chucks 7, 7. When the objects 5, 5 attain the required solid phase joining temp. in this state, the objects 5, 5 are axially pressed by axially pressing cylinders 9, 9, and a pushing means 14 is lifted by a lower cylinder 13 of the jig 4 to press the joint part 5a of the objects 5, 5 in the direction perpendicular to the axial direction thereof and to hold the same for a specified time, thereby performing solid phase joining of the objects 5, 5.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a method for in-phase joining of elongated materials.

[Technical background of the invention and its problems]

Recently, brazing has become a popular method for joining long composite materials.

Fusion welding and cold pressure welding have been put into practical use. However, these bonding methods do not adequately bond the individual materials of the composite together and tend to damage the properties of the composite. Therefore, the applicant filed the patent application No. 56-159836.
No. 1, "Solid phase bonding device", we disclosed a bonding method that can solve the above problems. That is, in solid-phase joining, the ends of the pair of objects to be welded near the joint are held by chucks, the joints are butted together, and the joint is restrained by the deformation restraining part. This deformation restraining portion is provided with a pusher. Then, at the bonding temperature, the pair of objects to be bonded is pressurized in opposite directions along the axial direction through the chuck, and at a right angle to the axial direction of the objects to be bonded by the pushing tool. By applying pressure in the direction, the parts to be joined are joined while preventing deformation of the parts to be joined.

However, in this solid phase welding apparatus, since the work piece is cooled by air cooling, the work efficiency suffers greatly and the area where the work piece softens due to the influence of heat increases.

[Purpose of the invention]

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide a solid phase bonding apparatus that can improve solid phase bonding efficiency and reduce thermal effects during solid phase bonding.

[Summary of the invention]

The first one holds a pair of objects to be welded and applies pressure in the axial direction. The second chuck and the divisible deformation restraining jig that covers the joint portion of the workpiece are each provided with a forced cooling section, and these forced cooling sections forcibly cool the workpiece whose temperature has risen due to i-phase welding. It is.

[Embodiments of the invention]

Hereinafter, the Issho side of the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows the solid phase bonding apparatus of this embodiment. A first chuck (2) and a second chuck (3) are installed at both ends in the longitudinal direction of the base (1), and between these, the first chuck (1) is installed. Second chuck (2).

A deformation restraint jig (4) is provided apart from (3).

Above 1. Since the second chucks (2+, (3)) are the same horizontally, to explain only one of them, the upper chuck (6) and the lower chuck (6) that clamp the object (5) to be welded and the lower chuck (
7), and these consist of a chuck pressure cylinder (8).
) to be opened and closed. Furthermore, the upper and lower chucks (6) and (7) are connected to an axial pressure cylinder (9) that presses the welded part (5) in the axial direction,
This axial pressure cylinder (9) applies pressure in the axial direction to the upper and lower chucks (6) and the workpiece (5) which is clamped by the force. )
is divided into two parts, an upper jig (10a) and a lower jig (10b), which accommodate the joint part (5a) of the pair of objects (5), (5). (See Figure 2). The upper jig (10a) is provided with an upper cylinder (11) that presses toward the lower jig (10b).

In addition, a through hole (121) is bored in the lower jig (10b), and a push tool (141) that is moved up and down by the lower cylinder 09 is inserted into this through hole (L).
As shown in Fig. 2, the upper chucks (6), (61
and a lower chuck (7).

(7) has a plurality of cooling holes α9 passing through the base (1) at equal intervals in a direction parallel to the upper surface and perpendicular to the longitudinal direction.
is drilled. Also, the upper part of the deformation restraint jig (4).

The lower jigs (10a) and (10b) are provided with cooling holes (151...) which are through holes parallel to the upper surface of the base (1) and in a direction one page square in the longitudinal direction, on both sides thereof. At the same time, a storage hole surface, which is a through hole in which a sheath heater (Iθ) for heating is stored, is bored in the central part parallel to the cooling hole Hose joints (not shown) are attached to the openings between one end and the other end of the cooling holes (19...), and flexible hoses connected to a water supply source (not shown) are attached to these hose joints. In addition, the sheath heater (old) stored in the storage hole (17) is connected to a power source (not shown), and , upper and lower jigs (10a), (1ob) t-so
It can be heated to temperatures above 0°C.

Next, the operation of the above embodiment will be explained.

First, a pair of objects to be welded (5), f5) are held between the first chuck (2) and the second chuck (3), respectively, and the end faces of the objects are held close to each other at the joint (5a). Upper jig (10a) and lower jig (10b) of deformation restraint jig (4)
). Next, after the entire apparatus is placed in a vacuum, inert gas or reducing gas atmosphere, the deformation restraint jig (4) is heated by supplying it to the sheath heater αe... Things (5), (5)
heat up. At the same time, the upper chuck (6i, (6)
Cooling water is supplied to the lower chunk (force, (power cooling hole 15)... via the water supply hose. In this state, the objects to be bonded (5), (5) reach the required in-phase bonding temperature. When the axial pressure cylinders (9) and (9) reach the position, the objects to be welded (5) and (51) are pressurized in the axial direction, and the lower cylinder (13) of the deformation restraint jig (4) is used to press the pushing tool α.
(1) is pushed up, and the joint parts (5a) of the objects to be joined +5], +5) are pressurized in a direction perpendicular to the axial direction and held for a certain period of time. In this way, when the objects to be joined (5), (5) are pressurized in the axial direction, the joined part (5a) tries to deform in the direction perpendicular to the axial direction, but the joined part (5a) Ingredients (4
) and is pressed by the push tool (150), which suppresses deformation, and increases the pressure contact force on the end face of the joint (5a) due to the leakage of the push tool α. Furthermore, since the parts of the objects to be welded +5), +5) held by the upper chucks (6), +6) and the lower chucks (7), (7) are cooled by cooling water, they are not exposed to high temperatures. Heat diffusion from the heated joint (5a) is prevented and the workpiece (5a)
).

(5) The thermal softening region can be made smaller. Thus, when taking out the objects to be welded (5i, f5) after welding, first, the upper chuck (6L (61, cooling hole (15) of the lower chuck (71, (7))... as well as the upper and lower Cooling holes (1 hole/
・Flow cooling water to the object to be welded f51. f5) is forcibly cooled in a shade near room temperature where the workpieces +5) and +5) are not oxidized. However, the first. Second chuck (2).

(3) and at the same time, open the upper cylinder (old) of the deformation restraint jig (4). And the upper jig (10a)
After opening the lower jig (10b), lower cylinder f
13) is activated and the pusher a4I is pushed upward, the objects to be welded (5), +5) are taken out from the deformation restraint jig (4).

In this way, the solid phase welding apparatus of this embodiment is designed to forcibly cool the workpieces (5), (5) whose temperature has increased due to solid phase welding, so that the temperature is lower than that in the case of natural air cooling. You can significantly reduce the time and improve your English writing efficiency. Chuck (6) when the temperature rises and the A-mesh joins.

(6) , (7) , (By cooling the strong side, it is possible to reduce the heat diffusion from the high-temperature area of the face-to-face joint to the surrounding area, so the softened area of the workpiece is gripped by the deformation restraint jig (4). It is possible to suppress the area below the 1J shell, which contributes to improving the quality of the in-phase bonded product.

Note that FIG. 3 shows another embodiment of the present invention (the same parts as in the above embodiment are given the same reference numerals and explanations are omitted), and the difference from the above embodiment is that vertical pressure is applied. This is also done from above using the push tool (14a), and the guide shaft 0 is moved by the lower chucks (7), (7) and the push tool (1
4) K is passed through to prevent positional shift during in-phase bonding. In this embodiment as well, cooling holes 05) are provided as in the above embodiment, and the same effects as in the above embodiment can be achieved. moreover,
In the above-mentioned ' Each surface of the lower jigs (10a) and (10b) may be covered with a cooling plate to which a pipe through which cooling water circulates is attached. Further, push tools (14), (14a
) may also be provided with cooling holes (+5). Furthermore, the direction in which the cooling holes 0... is arranged is parallel to the upper surface of the base (1) and parallel to the longitudinal direction in the above embodiment, but it may be arranged in any direction without being restricted to this. good.

〔Effect of the invention〕

Since the in-phase bonding device of the present invention has a cooling-like portion, the portion heated during in-phase bonding can be forcibly cooled, and the temperature can be lowered in a short time to a temperature at which the material to be oxidized is not oxidized. Therefore, work efficiency is greatly improved. In particular, by cooling the workpiece through the chuck that supports it even during the solid-phase bonding period, it is possible to prevent the softening region of the workpiece due to high-humidity heating from expanding from the vicinity of the welding area to the peripheral area. This improves the quality of in-phase junctions.

[Brief explanation of the drawing]

FIG. 1 is a front view of a solid phase welding device according to the present invention, FIG. 2 is an enlarged cross-sectional view of a main part of the solid phase welding device shown in FIG. 1, and FIG. FIG. 2 is an enlarged cross-sectional view of the main parts of the solid-phase bonding apparatus H. (2): First chuck, (3): Second chuck. (4): Deformation restraint jig, (5): Workpiece. (5a): Joint part, 1l-1): Push tool. ([9: Cooling hole (forced cooling part). Agent: Patent attorney Noriyuki Chika (and 1 other person)

Claims (2)

[Claims] (1) The first step which holds a pair of objects to be welded and applies pressure in the axial direction. a second chuck, and these first chucks. These first chucks are thermally isolated from the second chuck. a splittable deformation restraint jig located between the second chucks and covering the joint portion of the pair of workpieces; a push tool that applies pressure in the direction;
A solid phase welding apparatus characterized in that the first and second chucks and a forced cooling section provided in the deformation restraining jig cool down the workpiece whose temperature has increased due to solid phase welding. . (2) The solid phase bonding apparatus according to claim 1, wherein the forced cooling section is a through hole through which cooling water passes.