Rhenium and iridium engine combustion chamber inner wall protective platinum and rhodium ring production method
An engine and combustion chamber technology, which is applied in the field of preparing platinum-rhodium rings for inner wall protection of a rhenium-iridium engine combustion chamber, can solve problems such as thrust chamber failure and iridium coating failure, and achieve the effects of preventing corrosion, having good surface condition and stable properties.
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[0056] Example 1
[0057] 1. Preparation of tube-shaped blanks: such as figure 2 As shown, the market purchases PtRh10 pipe fittings with a thickness of 0.7mm, a length of 10mm, and an outer diameter of Ф44.6mm.
[0058] 2. The spinning process is realized on an ordinary lathe, and the diameter of the design and processing wheel 5 is D=Ф15mm, d=Ф6mm, such as image 3 .
[0059] Three, tooling design and processing
[0060] 1. Preparation of the first spinning tool assembly 1
[0061] (1) Choose 45# high carbon steel bar material: outer diameter is Ф60mm, length is 50mm;
[0062] (2) Take the inner diameter of the combustion chamber product to be assembled as the inner diameter, Ф56mm as the outer diameter, and 40mm as the length of the processing step (1) The selected bar material, and the assembly steps that change with the inner surface of the product are processed.
[0063] (3). On the basis of the completion of step (2), the end face of the tubular tooling is processed with 4 M3 thre...
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