Production method of fireproof antitheft door
A production method and technology for anti-theft doors are applied in fire doors, anti-theft, anti-war damage, etc., to achieve the effects of good sound insulation and shock absorption, strong anti-deformation ability, and simple processing and production methods.
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Embodiment 1
[0026] (1) Shearing: According to the required size of the drawing, the automatic shearing machine cuts the steel plate to obtain the front plate, back plate and door frame;
[0027] (2) Embossing; emboss the front and back panels according to customer requirements;
[0028] (3) Punching: use the punching die and combined punching machine to punch the corners of the front panel, back panel and door frame respectively;
[0029] (4) Bending: Use a bending machine and a precise bending tool to repeatedly bend the front panel, back panel and door frame;
[0030] (5) Pickling: Soak the front panel, back panel and door frame in a 15% hydrochloric acid solution for 30 minutes;
[0031] (6) Make the door panel: the door panel is in the order of the front panel-glass magnesium composite panel-perlite panel-glass magnesium composite panel-back panel, using MPU-20 type polyurethane adhesive, using a 50T cold press, and the pressure is 3.5kg / cm 2 , continue 24h to carry out high-pressur...
Embodiment 2
[0036] (1) Shearing: According to the required size of the drawing, the automatic shearing machine cuts the steel plate to obtain the front plate, back plate and door frame;
[0037] (2) Embossing; emboss the front and back panels according to customer requirements;
[0038] (3) Punching: use the punching die and combined punching machine to punch the corners of the front panel, back panel and door frame respectively;
[0039] (4) Bending: Use a bending machine and a precise bending tool to repeatedly bend the front panel, back panel and door frame;
[0040] (5) Pickling: Soak the front panel, back panel and door frame in a 20% phosphoric acid solution for 50 minutes;
[0041] (6) Make the door panel: the door panel is in the order of the front panel-glass magnesium composite panel-perlite panel-glass magnesium composite panel-back panel, using MPU-50 polyurethane adhesive, using a 50T cold press, and the pressure is 4.5kg / cm 2 , continue 36h to carry out high-pressure bondi...
Embodiment 3
[0046] (1) Shearing: According to the required size of the drawing, the automatic shearing machine cuts the steel plate to obtain the front plate, back plate and door frame;
[0047] (2) Embossing; emboss the front and back panels according to customer requirements;
[0048] (3) Punching: use the punching die and combined punching machine to punch the corners of the front panel, back panel and door frame respectively;
[0049] (4) Bending: Use a bending machine and a precise bending tool to repeatedly bend the front panel, back panel and door frame;
[0050] (5) Pickling: Soak the front panel, back panel and door frame in 40% hydrochloric acid solution for 40 minutes;
[0051] (6) Make the door panel: the door panel is in the order of the front panel-glass magnesium composite panel-perlite panel-glass magnesium composite panel-back panel, using MPU-20 type polyurethane adhesive, using a 50T cold press, and the pressure is 4.0kg / cm 2 , continue 30h for high-pressure bonding; ...
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