Method for adhering a titanium layer on material

Abstract

A laminate forming process comprises installing a heater assembly in a processing chamber, the heater assembly having a lower diffusion screen; coupling a vacuum assembly to channels of a platform; continuously conveying layers of titanium and solid adhesive in room temperature onto a workpiece on the platform; heating the processing chamber to a predetermined temperature by the heater assembly through the diffusion screen for evenly applying heat to the layers of titanium and adhesive and the workpiece and melting the layer of adhesive; and activating the vacuum assembly for sucking the layers of titanium and adhesive onto the workpiece through a communication of the channels so as to secure the layers of titanium and adhesive onto the workpiece and smooth the layer of titanium.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to laminates, and more particularly to a method for forming a titanium layer on a ferrous or nonferrous workpiece by adhering a polyolefin, polyamide, or polyurethane layer therebetween so as to enhance a bonding strength of titanium on the workpiece and smooth the surface thereof.

BACKGROUND OF THE INVENTION

[0002] It is well known to laminate a titanium layer on a ferrous or nonferrous workpiece. A typical process as referring to FIG. 1 comprises the steps of coating an adhesive 92 on the underside of a layer of titanium 93 in room temperature, and adhering the layer of titanium 93 onto a workpiece 91. However, the prior art suffered from a couple of disadvantages. For example, the coating of adhesive 92 on the underside of layer of titanium 93 is not uniform. Further, the process is time-consuming. Furthermore, a plurality of bubbles exists within adhesive 92 because the manufacturing process is performed in a non-vacuum environment in room temperature. As a result, titanium 93 tends to reel off the workpiece 91 after a predetermined period time of use. Moreover, the formed workpiece 91 does not have a smooth surface. Thus improvement exists.

SUMMARY OF THE INVENTION

[0003] It is therefore an object of the present invention to provide a laminate forming process comprising the steps of (a) installing a heater assembly in a processing chamber, the heater assembly having a diffusion screen secured below; (b) coupling a vacuum assembly to a plurality of channels of a platform; (c) continuously conveying layers of titanium and solid adhesive in room temperature onto a workpiece on the platform; (d) heating the processing chamber to a predetermined temperature by the heater assembly through the diffusion screen so as to evenly apply heat to the layers of titanium and adhesive and the workpiece and melt the layer of adhesive; and (e) activating the vacuum assembly for sucking the layers of titanium and adhesive onto the workpiece through a communication of the channels so as to secure the layers of titanium and adhesive onto the workpiece and smooth the layer of titanium. The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0004] FIG. 1 is a cross-sectional view of a layer of titanium adhered onto a workpiece formed by a conventional process;

[0005] FIG. 2 is a flow chart illustrating a process of adhering a layer of titanium onto a workpiece according to the invention;

[0006] FIG. 3 is a cross-sectional view showing an apparatus according to the invention where layers of titanium and adhesive have not adhered on a workpiece; and

[0007] FIG. 4 is a view similar to FIG. 3 where layer of adhesive has been melted to secure layer of titanium onto workpiece.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Referring to FIG. 2, there is shown a process in accordance with the invention. A description of the process is made by referring to an apparatus shown in FIGS. 3 and 4. The process comprises the steps of (a) installing a heater assembly 60 in a processing chamber 70, the heater assembly 60 having a diffusion screen 50 secured below a distance; (b) coupling a vacuum assembly 80 to a plurality of vertical channels 11 of a platform 10; (c) continuously conveying layers of titanium 40 and solid adhesive 30 in room temperature onto a workpiece 20 formed of ferrous or nonferrous material on the platform 10 wherein the adhesive 30 is selected from a group of consisting of polyolefin, polyamide, and polyurethane materials depending on the used ferrous or nonferrous workpiece 20; (d) heating the processing chamber 70 to a predetermined temperature by the heater assembly 60 through diffusion screen 50 so as to evenly apply heat to the layers of titanium 40 and adhesive 30 and workpiece 20 and melt the layer of adhesive 30; and (e) activating the vacuum assembly 80 for sucking the layers of titanium 40 and adhesive 30 onto workpiece 20 through a communication of the channels 11 so as to secure the layers of titanium 40 and adhesive 30 onto workpiece 20 and smooth the layer of titanium 40.

[0009] While the invention has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the invention set forth in the claims.

Claims

1. A laminate forming process comprising the steps of: (a) installing a heater assembly in a processing chamber, the heater assembly having a diffusion screen secured below; (b) coupling a vacuum assembly to a plurality of channels of a platform; (c) continuously conveying layers of titanium and solid adhesive in room temperature onto a workpiece on the platform; (d) heating the processing chamber to a predetermined temperature by the heater assembly through the diffusion screen so as to evenly apply heat to the layers of titanium and adhesive and the workpiece and melt the layer of adhesive; and (e) activating the vacuum assembly for sucking the layers of titanium and adhesive onto the workpiece through a communication of the channels so as to secure the layers of titanium and adhesive onto the workpiece and smooth the layer of titanium.

2. The process of claim 1, wherein the adhesive is a polyolefin.

3. The process of claim 1, wherein the adhesive is a polyamide.

4. The process of claim 1, wherein the adhesive is a polyurethane.