Method for processing thin-walled tube of zirconium alloy specially used by nuclear reactor
A technology for zirconium alloy tubes and nuclear reactors, which is applied in the field of special zirconium alloy thin-walled tubes for the manufacture of grid ring tubes in nuclear reactor fuel assemblies, which can solve the problems of low technical precision, difficulty in meeting the processing accuracy requirements of zirconium alloy thin-walled tubes, and dependence on imports, etc. question
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[0056] The specific implementation of the manufacturing process of the special-purpose zirconium alloy thin-walled tube for nuclear reactors will be further described in detail below in conjunction with the accompanying drawings. The specific manufacturing steps of the manufacturing method for the special-purpose zirconium alloy thin-walled tube for nuclear reactors are:
[0057] a) Blank preparation, such as figure 1 As shown, the first zirconium alloy tube (1) with a certain length of Φ44.5×7.65mm is selected as the blank;
[0058] b) The first pass of cold rolling, such as figure 2 As shown, the first zirconium alloy tube (1) is cold-rolled by KPW75 rolling mill and then cut to form a certain length of second zirconium alloy tube (4). mm / time, adjust the rolling mill so that the rolled second zirconium alloy tube (4) meets the process parameters of the zirconium alloy tube, strictly control the wall thickness deviation of the pass in the cold rolling, and obtain Φ31.75 ±...
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