JPS6157916B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for surface-treating a profile such as aluminum or an aluminum alloy.

Conventionally, in order to apply a surface treatment such as alumite processing to a shape material such as aluminum or aluminum alloy, the shape material is straightened, cut to a predetermined length, loaded onto a pallet, subjected to an aging treatment, and then processed until the dimensions are uniform. Items were attached to an electrolytic frame and subjected to electrolytic treatment. According to this method, since the aging treatment is performed on the pallet, a part of the heat required for the aging treatment is taken up by the pallet and the cart, resulting in energy loss. In addition, the shapes are often stored horizontally until the electrolytic treatment after the aging treatment, but this not only takes up a lot of storage space, but also has many opportunities for the shapes to rub against each other, making the surface of the shapes more likely to be damaged. During electrolytic treatment, since the shape is directly attached to the electrolytic frame, it is necessary to prepare a mounting means suitable for the shape of the shape. Since it is not possible to immerse the material completely, an untreated portion remains at the top of the profile, resulting in material loss. Even when baking is performed after alumite processing, it is uneconomical because it is carried out while attached to the electrolytic frame, which causes a large heat loss.

The present invention aims to improve the above-mentioned problems of the conventional method.After cutting a shape into a predetermined size, a plurality of shapes having the same shape and size are attached to an auxiliary fixture, and the shapes are suspended vertically. The gist of the method is to subject the shape to an aging treatment, and then, while the shape is attached to an auxiliary fixture, the auxiliary fixture is attached to an electrolytic frame and the shape is electrolytically treated. It is.

To explain the embodiment with reference to the drawings, FIG. 1 shows a state in which a plurality of shapes 1 are cut into predetermined dimensions and then attached to an auxiliary fixture 2. Attachment is performed by fixing the aluminum wire 3 by means of spot welding or the like. In FIG. 2, the profile 1 attached to the auxiliary fixture 2 is suspended vertically and continuously charged into the furnace 4, where it is subjected to aging treatment. The shapes 1 are loaded into and taken out of the furnace 4 from the bottom of the furnace. By doing this, heat loss is reduced.

The shaped material 1 that has been subjected to the aging treatment is stored in a vertically suspended state while being attached to the auxiliary fixture 2. Then, in order to subject it to electrolytic treatment, the auxiliary fixture 2 is attached to the electrolytic frame 5 using grippers 6, as shown in FIG. A plurality of auxiliary fixtures 2 are attached to the same electrolytic frame 5.
The dimensions and shape of the profile 1 attached to each auxiliary fixture 2 may vary from unit to unit. If the dimensions of the shape 1 differ from unit to unit, uniform electrolytic treatment can be achieved by matching the divided cathodes to the shape 1 in each unit and controlling the current.

According to the present invention, there is no need for a pallet truck for shaped materials, and there is no need to transport and store empty pallets, and heat loss during aging treatment is reduced. Furthermore, since the auxiliary fixtures are used, the sections can be hung vertically, and damage caused by contact between the sections is reduced. Since the shape of the auxiliary fixture may be kept constant even if the shape of the profile changes, its attachment to and removal from the electrolytic frame can be easily automated. Furthermore, since the baking process can be performed while the electrolytic frame is removed and attached to the auxiliary fixture, heat loss can also be reduced in this respect. The processed profile is removed from the auxiliary fixture, and the auxiliary fixture from which the profile has been removed is recycled and used again.

As described above, the present invention enables the surface treatment of shapes such as aluminum to be carried out efficiently and with energy savings, and its industrial effects are extremely large.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the shape attached to the auxiliary fixture, Figure 2 is a sectional view showing the aging process, and Figure 3 is the auxiliary fixture with the profile attached to the electrolytic frame. FIG. 1...Shape, 2...Auxiliary fixture, 3...Aluminum wire, 4...Furnace, 5...Electrolytic frame, 6...Gripper.

Claims (1)

[Claims] 1. After cutting the shapes to the specified dimensions, attach multiple pieces to auxiliary fixtures, hang them vertically, and age them.
A method for processing a shaped material, which comprises: then attaching the auxiliary fixture to an electrolytic frame while the shaped material is attached to the auxiliary fixture, and subjecting the shaped material to electrolytic treatment.