Maybe you only know the use of the vault door, but it is not clear about its lock security, lock level requirements, the following Tianqi simple to introduce you to the functional use of several locks it!
The mechanical lock transmission has two-direction locking bolts and large handwheels. The transmission mechanism is flexible. In addition to supporting the weight of the door leaf, the door hinge can also be adjusted to ensure that the gap between the door leaf and the door frame meets the design requirements. Under the external force of no more than 147N, the door leaf can be opened and closed flexibly. The door inserting tongue and the actuator are flexible in movement. The manual lock can lock or open the door leaf under the force of no more than 30N.
The main door is equipped with two US-original UL-certified Shakin S&G 6731 4-rotor mechanical combination locks and 938G-type castle-tag double-head interlocking lock and a 633-type timing lock.
The double-headed lock is a double-key operation type; its theoretical key quantity is not less than 60000, its mutual opening rate is not more than 0.03%, the step difference is not less than 0.5mm or 15° angle, and there is an anti-drilling function at the keyhole. The length of the key shaft of the single-key special lock is not less than 100mm.
Mechanical combination lock: The password combination of the mechanical combination lock is not less than 108. The mechanical code lock rotation piece mandrel can withstand 2000N force in the locked state without disengagement. When the mandrel is disengaged, the rotation piece maintains the original position and the coded lock remains locked. The mechanical code lock meets the requirements of 5.4.7 of the GA/T73 standard.
Characteristice and Applications:
Dingzhou jinlong metal production Co.ltd is the directly factory for producing AWS E308-16 E308L-16 E309-16 E309L-16 E316-16 E316L-16 Stainless Steel Welding Electrodes. Excellent performances in slag release,weld bead appearance, weldability, corrosion resistibility at high temperature are all obtainable.It is suitable for the welding most of the stainless steel in all positions.
Notes on usage:
1. clean up the contaminations on the base metal groove and pass to pass with stainless steel brush.
2. Maintaining short arc length as possible is highly recommended.While welding with weava method,moving range should be controlled within 2.5 times of the wire`s dia.
3. Dry the electrodes at 250~300℃ for 60 minutes before use.Take out consumables for half day consumption and keep in the environment at 100~150℃ during welding process.
4. Use lower current to prevent from cracking and minimize base metal dilution.
Application:
Stainless Steel Welding Electrodes were developed for the welding of Type AWS E308-16 E308L-16 E316-16 E316L-16 E309-16 E309L-16 stainless steels but can be used for many other stainless steels including Types. They are used extensively for the welding of chemical plant equipment and may be used successfully for the welding of stainless steels provided the service temperature is less than about 700°F (375°C). The basic coating gives the highest resistance to cracking and excellent vertical welding characteristics. Operates on DC current only.
Stainless Steel Welding Electrodes
Stainless Steel Welding Electrode,Stainless Steel Welding Rod,Stainless Welding Rod,Stainless Steel Arc Welding Rods
Dingzhou Jinlong Metal Production Co., Ltd. , https://www.weldingelectrodefactory.com