2. Install shrapnel seal at the opening and closing position of assembly formwork, and install vacuum pumping pipeline next to it;<br>3. Vacuum pumping shall be started when the aluminum shell enters the assembly and erection mold. After the first assembly and erection rod inserts the prime into the assembly and erection mold, it enters half of the aluminum shell for continuous vacuum pumping, and the assembly and erection mold runs to the beam<br>After the mold is in position, the second group of upright rods completely insert the prime and rubber cover into the aluminum shell (vacuum is always pumped during the assembly operation), the assembly mold is opened, the vacuum pumping is completed, and the waist is sealed;<br>4. When the vacuum value is lower than the set value, the product is judged as defective, and the product is pumped into the return box. The continuous 3pcs defective shutdown alarm and abnormal prompt are displayed.<br>
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