Carbomer Carbopol 940,also called Carbomer or Carboxypoly-methylene is a generic name for synthetic high molecular weight polymers of acrylic ACID used as thickening, dispersing, suspending and emulsifying agents in pharmaceuticals and cosmetics. They may be homopolymers of acrylic acid, crosslinked with an allyl ether pentaerythritol, allyl ether of sucrose or allyl ether of propylene. Carbomers are found in the market as white and fluffy powders. They have the ability to absorb, retain water and swell to many times their original volume. Carbomers codes (910, 934, 940, 941 and 934P) are an indication of molecular weight and the specific components of the polymer . This product is acrylic bonded allyl sucrose or pentaerythritol allyl ether polymer. Calculated on dry goods, including carboxylic acid group (-cooh) group - should be 56. 0 % ~ 68. 0 %. Carbomer,Carbomer 974 P,Carbopol 940 Carbomer,Carbomer U 21 HENAN JINHE INDUSTRY CO.,LTD , https://www.hnchromiumoxidegreen.com
Multi-pole tube type wire installation conduit
Multi-pole type trolley wire installation conduit:
1, according to the installation diagram, the catheter, thermal expansion compensation pipe, maintenance catheter, the middle of the power supply segment of the schematic diagram of the position of the order line, in order to facilitate the smooth development of the work.
2. The shaping clip and the hanging clip can be pre-installed on each of the conduits. When lifting, the hanging position of the hanging clip can be adjusted, and the guide rail can be parallel to the movement track of the receiving machine. The tolerance of the horizontal height at the suspension bracket is 2mm, and the horizontal distance is 4mm.
3, rail connection, there are two types of hinge connection and docking. The joint screws must be tightened to prevent loosening so as to avoid overheating when the current is passed through. The inner surface of the guide rails must be in the same plane to make the transition smooth. When the conductors are pushed repeatedly at the joints, they should not impede the feeling of obstruction. If necessary, Fine trowel can be used to trim to a smooth transition. The connection weight of the guide rail is the key to the installation quality of the trolley wire and must be carefully handled.
4. The connection of the catheter is made with a connecting clip. The lower edge of the connecting clip is embedded in the guide tube groove to ensure the coaxiality of the two catheters.
5. Install the end or middle cable box clothing end cap, the end cable box and the wither cover should be fixed by screws.
6, install the fork, fork can be welded or bolted to the transmission arm, the transmission arm is installed on the conductive device, the surface and the center of the catheter should be kept at a distance of about 100mm. The fork is inserted into the conductor and should be allowed to swing freely up and down the entire line. Its range is 40mm and can absorb transmission errors and shocks in other directions.
7. When switching on the power supply, pay attention to the following items:
(1) Review the installation status of the entire line before power on. After confirmation, the commissioning personnel can enter the operation position, and other personnel should evacuate the site or enter a safe area.
(2) After the power is turned on, do not rush to start the crane, observe the static electricity is normal, and then start the car motor, test run two minutes, then start the big car motor, driving at low speed, along the entire line of observation, should pay special attention to the part of the movement The possibility of rubbing with brackets, cement columns, etc., should be corrected immediately if any of the following conditions are found:
a. If there is a large change in the catheter, adjust the catheter or correct the fork.
b. When the conductor runs abnormally, check whether the rail connection point is flat.