A preparation method of beryllium sheet used as main detector window of space astronomical satellite
A main detector and astronomical technology, applied in the direction of manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of small effective area size, poor uniformity of thickness size, low product qualification rate, etc., to achieve large effective area size, The effect of uniform thickness and size and high product qualification rate
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Embodiment 1
[0035] Step 1. Hot rolling the rolled beryllium plate, wherein the hot rolling temperature is 700°C, the holding time is 60 minutes, the total hot rolling processing rate is 70%, and the pass processing rate is 10%.
[0036] Step 2: Processing the left and right sides of the hot-rolled beryllium plate with semi-circular arcs at equal intervals, and then performing semi-circular arc surface treatment. The equidistant distance is 20mm; the size of the semi-circular arc is φ3mm.
[0037] Step 3. Use small reduction distribution and multi-pass rolling to warm-roll the beryllium plate after the semi-circular surface treatment; and place the beryllium plate after the warm-rolled stress-relief heat treatment horizontally on the basis of 500ml phosphoric acid + 50g Chromic anhydride + 30ml glycerin + 10ml alcohol + 5ml hydrofluoric acid has undergone a violent chemical reaction, and the chemical cleaning time is 5 minutes in the remaining acid solution 2 hours after the violent chemic...
Embodiment 2
[0048] Step 1. Hot rolling the rolled beryllium plate, wherein the hot rolling temperature is 800°C, the holding time is 45 minutes, the total hot rolling processing rate is 75%, and the pass processing rate is 15%.
[0049] Step 2: Processing the left and right sides of the hot-rolled beryllium plate with semi-circular arcs at equal intervals, and then performing semi-circular arc surface treatment. The equidistant distance is 22mm; the size of the semi-circular arc is φ4mm.
[0050]Step 3. Use small reduction distribution and multi-pass rolling to warm-roll the beryllium plate after the semi-circular surface treatment; and place the beryllium plate after the warm-rolled stress-relief heat treatment horizontally on the basis of 1500ml phosphoric acid + 200g Chromic anhydride + 200ml glycerin + 30ml alcohol + 25ml hydrofluoric acid formula has undergone a severe chemical reaction and 3.5 hours after the violent chemical reaction, the remaining acid solution is used for chemica...
Embodiment 3
[0062] Step 1. Hot rolling the rolled beryllium plate, wherein the hot rolling temperature is 950°C, the holding time is 25 minutes, the total hot rolling processing rate is 85%, and the pass processing rate is 20%.
[0063] Step 2: Processing the left and right sides of the hot-rolled beryllium plate with semi-circular arcs at equal intervals, and then performing semi-circular arc surface treatment. The equidistant distance is 25mm; the size of the semi-circular arc is φ5mm.
[0064] Step 3. Use small reduction distribution and multi-pass rolling to warm-roll the beryllium plate after the semi-circular surface treatment; and place the beryllium plate after the warm-rolled stress-relief heat treatment horizontally on the basis of 2000ml phosphoric acid + 300g Chromic anhydride + 100ml glycerin + 50ml alcohol + 40ml hydrofluoric acid has undergone a violent chemical reaction and 3.5 hours after the violent chemical reaction, the remaining acid solution is used for chemical clea...
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