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Method for treating and sticking work pieces made of metal or a metal alloy comprising a hydrated oxide and/or hydroxide layer

A technology of hydroxide and metal alloys, applied in surface pretreatment bonding methods, bonding methods, polyurea/polyurethane adhesives, etc., can solve difficult adhesives, insufficient connection of bonding areas, Problems such as wetting the oxide layer

Inactive Publication Date: 2007-11-07
SIKA TECH AG
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] Another problem with these surfaces is that even when conventional treatments are used to apply a defined oxide layer, such as is the case with Eloxal (electro-aluminum oxidation), it is difficult to achieve it thoroughly due to the low surface energy. Wet the oxide layer with the adhesive
As a result the bonded area is not sufficiently connected to another bonded area

Method used

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  • Method for treating and sticking work pieces made of metal or a metal alloy comprising a hydrated oxide and/or hydroxide layer
  • Method for treating and sticking work pieces made of metal or a metal alloy comprising a hydrated oxide and/or hydroxide layer
  • Method for treating and sticking work pieces made of metal or a metal alloy comprising a hydrated oxide and/or hydroxide layer

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Embodiment Construction

[0018] In the present invention, metals or metal alloys having a hydrated oxide and / or hydroxide layer specifically include the metals titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, tin, magnesium, aluminum and their combinations Alloys of another kind or their alloys with other alloying constituents such as silicon or carbon. Among these alloys, various steels and aluminum alloys are particularly preferable. Particular preference is given to non-ferrous metal materials, such as aluminum, magnesium or titanium materials. A preferred material with a layer of hydrous oxide and / or hydroxide is aluminum. Finally, materials such as silicon and silicon oxide (glass) can also have oxide and / or hydroxide layers and thus also fall within the scope of application of the present invention.

[0019] The invention is described below using aluminum as a material. However, the present invention is not limited to aluminum materials. Generally, the present inv...

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Abstract

An impact test apparatus includes a holding device for holding a test piece at an arbitrary holding force, an impact applying device for applying an impact force to the test piece held by the holding device, a force sensor for sensing the impact force applied to the test piece by the impact applying device, a high-speed camera for detecting a displacement of the test piece when applied with the impact force by the impact applying device, and an output device for synchronizing a signal from the force sensor with a signal from the high-speed camera and outputting an impact stress-strain characteristic curve when the impact force is applied to the test piece.

Description

technical field [0001] The invention relates to a method for the treatment of the bonding area of ​​workpieces made of metals or metal alloys with a layer of hydrous oxide and / or hydroxide, and also to a method for bonding two workpieces, wherein at least one of the workpieces Consisting of a metal or metal alloy having a layer of a hydrous oxide and / or hydroxide, the workpieces each have at least one bonded area. Background technique [0002] With the exception of noble metals, most metals and metal alloys have hydrous oxide and / or hydroxide layers. Metals or metal alloys with hydrated oxide and / or hydroxide layers are widely used in industry, especially in industrial manufacturing. [0003] Currently, these materials must be joined by conventional joining methods such as riveting, welding or bolting. However, it has been found that these traditional joining methods have a number of disadvantages. For example, when such an assembly is loaded, there are very high stress p...

Claims

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Application Information

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IPC IPC(8): C09J5/00C09J175/04C09J163/00B62D27/02
CPCC09J2400/166Y10T428/31678C09J175/04C09J5/02C09J163/00C08L2666/02C08L2666/20
Inventor D·帕尔N·布兰克U·哈特曼M·斯特格
Owner SIKA TECH AG
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