JPS608119A - Compound metallic body - Google Patents

Abstract

PURPOSE:To prevent the occurrence of a clearance between both metals, Al- SUS, by sticking a tearing steel wire rolled round with a paper tape or the like to and SUS plate or the like being extruded together with an Al base in advance, in case of a compound extrusion body of an Al-SUS steel structure trolley and so on. CONSTITUTION:A gap between two fine tearing steel wires 1 and 1 is joined together through a paper tape or a metallic thin plate 2 and then stuck on the top of an SUS plate 3. Next, this SUS plate 3 is extruded so as to be solidly embedded in the topside of an Al base body. Wish this constitution, tear grooves 5 are formed on both sides of the topside of the Al base body. After cooling, the tear groove 5 is torn so as to pull out these tearing steel wires 1, and a surface part of the SUS plate 3 is peeled, thus an Al-SUS steel structure trolley is produced. With this constitution, scratches and rust on the SUS plate are preventable from occurring.

Description

[Detailed description of the invention] The present invention is based on At 5US (aluminum-stainless steel)
This relates to an alloyed knitted body such as a rigid trolley.

In general, a highly abrasive metal such as SUS (stainless steel) is bonded to the essential surface of a high-4-density material such as Aff (aluminum) to form a current collector shoe, and this 808 surface is made to slide. A composite conductor called a rigid trolley has been proposed, and it has become superior in terms of economy and maintenance compared to conventional planer conductors.

However, when molding the above composite conductor,
As shown in Figure wJ1, since the SUS plate is gripped on the large surface of the Al base and extrusion molded in the longitudinal direction, the degree of slippage between the M base and the SUS plate at the contact surface with the extrusion mold is different. However, there is a problem in that it is not possible to obtain an integral composite by good extrusion 7/ζ.

In other words, the friction coefficients of the extrusion mold and the Al base and SUS plate are different, resulting in a difference in the degree of slippage during extrusion molding.
'The SUS plate could not be held integrally with the human face part of the base, and there were problems such as gaps between the white metals, increased electrical resistance, and gap corrosion, which caused inconveniences in use.

The present invention was made in view of the above-mentioned circumstances, and
When manufacturing the AJ-5US j'dlj body trolley using the composite extrusion method, paper tape or all-thin tape is wrapped around the tearing steel wire in advance, and it is integrally attached to the top surface of the U base together with a composite metal such as a SUS plate. To provide a composite metal body which is extrusion-molded so as to be embedded, and after extrusion-molding, the top surface is peeled off so as to remove a tearing copper wire to expose an SOS plate.

Embodiments according to the present invention will be described in detail below with reference to FIGS. 2 and 3.

FIG. 2 shows the Aff-8US rigid body trolley IJ-
FIG. 2 is an explanatory diagram showing the forming process of , first, two thin tearing steel wires 1.1 are joined with paper tape or thin metal tape 2, and then the upper surface of the SOS plate 3 to be buried is bonded with an adhesive or the like. Supported. Next, the S'US plate 3 and the tape 2 are set in a mold, and this SUS plate 3 is integrally embedded in the top surface of the M base 40 and extruded. At this time, extrusion molding is performed to form tear grooves 5 on both sides of the top surface of the hl base 4.

Thereafter, after cooling and hardening treatment, the tearing steel wire 1 is pulled out to tear the tearing grooves 5 on both sides of the top surface.
By peeling off the surface part of the plate 3, Af-SU
The S rigid body trolley is completed.

FIG. 3 is a sectional view of the main parts showing another embodiment according to the present invention, in which the Al base 4 and the SUS buried in the top and bottom surfaces.
The plate 3H is extruded so that the values are set at vertically symmetrical positions.

As explained in detail above, according to the composite metal body according to the present invention, SU is formed on the top surface of the rigid trolley by the composite extrusion method.
When burying the S-plate, a tape with a tearing steel wire bonded to it is pasted on the top surface of the SUS plate via an adhesive, and the top surface of the SUS plate is peeled off after integrally extruding the M base. This prevents scratches and rust on the surface of the S'[JS plate, and also allows the surface of the SOS grate to be kept hazy until use.

That is, the extrusion die and the V base body fit well during extrusion molding, and the upper surface of the SOS plate can be peeled off on site after molding.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional example during extrusion molding;
The figure is an explanatory diagram showing the manufacturing process of the A/'-SUS rigid body trolley according to the present invention, and FIG. 3 is a sectional view showing another embodiment according to the present invention. 1... Copper wire for tearing, 2... Tape, 3...
...sUs plate, 4..., U base,
5... Tear groove patent applicant Hideaki Sato, agent of Nippon Light Metal Co., Ltd., patent attorney

Claims (1)

[Claims] Composite 111 of hz-8US rigid body trolley etc.
The S plate is extruded so as to be embedded integrally in the top part of the extruded material consisting of the ψ base, and after the M' base is extruded, the tearing steel wire is removed, and the top surface of the SUS plate is peeled off. A composite metal body characterized by: