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Exothermic wire for bonding substrates

A technology of exothermic reaction and wire harness, which is applied in the field of exothermic wires connecting substrates, can solve the problems of difficulty in mass production and degradation of layer separation sheets, and achieve the effects of low cost, high productivity, and increased output

Inactive Publication Date: 2009-10-14
FEDERAL MOGUL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the manual folding of the sheet makes it difficult to mass-produce
Once many metal layers are rolled, the layers can be recoiled, causing separation of the layers and degradation of the resulting sheet
Such separation will also lead to unwanted surface oxidation of the interlayer by cold welding and prevent uniformity of the metal layers

Method used

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  • Exothermic wire for bonding substrates
  • Exothermic wire for bonding substrates
  • Exothermic wire for bonding substrates

Examples

Experimental program
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Embodiment Construction

[0028] Referring to the drawings, wherein like numerals refer to like or corresponding parts throughout, a conventional internal combustion engine assembly is shown in FIG. 1 , including a cylinder head 10 attached to a cylinder block 12 by head bolts 14 . A gasket 16 is provided between the cylinder head 10 and the cylinder block 12 and is clamped under the pressure of the cylinder head bolts 14 . Gasket 16 seals internal pressure and fluid circulation within the cylinder bore to prevent leakage and maximize combustion efficiency.

[0029] In some internal combustion engine applications, it may be desirable to permanently seal the cylinder head 10 to the cylinder block 12 without the gasket 16 . Recalling the existing fixed cylinder head internal combustion engine, the cylinder head and the cylinder block form an inseparable whole, the internal combustion engine thus formed has the advantage of saving the cost of the gasket 16 and avoiding it as a leakage path over time. How...

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PUM

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Abstract

Heating cords, foils or tapes are first manufactured by cold drawing individual round wires of constituent materials in a blanketed gas environment. This cold drawing operation produces a clean surface free of oxides and other contamination. Second, the constituent strands are brought together and twisted, cold drawn, swaged, and / or friction welded to produce an integral rope in which the constituent materials are in intimate contact. The integral rope can then be applied directly or further shaped into a shape and / or thickness. By controlling the dimensional ratios of the component cross-sections, the degree of controllability of the exothermic reaction characteristics can be tuned. Once the integral rope is formed, it can be coated with a layer of brazing and / or molten material to facilitate subsequent operations. Multiple strands can be woven together to form a cloth structure. The heat release device may be used in the field of permanently joining gaskets to opposing surfaces, such as attaching a cylinder head to a cylinder block in the operating position.

Description

[0001] CROSS REFERENCE TO THIS APPLICATION [0002] This application claims priority to US Provisional Application No. 60 / 667,999, filed April 4, 2005. field of invention [0003] The present invention relates to an improved method of forming an exothermic material useful in a variety of applications and using the exothermic material to permanently seal the cylinder head to the block in an internal combustion engine. Background technique [0004] Reactive multilayer flakes and coatings are used in a wide variety of applications where a controlled amount of heat generation in planar areas is required. Such structures typically include a series of substrate support layers that, under appropriate stimuli, undergo exothermic chemical reactions that spread over their footprint and thereby generate just a controllable amount of heat. Such exothermic chemistries are useful as a source of heat for professional welding, soldering and brazing operations. Of course, these exothermic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/00
Inventor 威廉·J·兹德布利克菲利普·金尼迈伦·施门克
Owner FEDERAL MOGUL CORP
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