Xicheng EP LTD is specialized in PP anti-corrosion processing equipment, professional CNC machining equipment and roll forming machinery, PP anti-corrosion equipment design, processing, installation services, the main products are wet scrubber, PP tank, PP activated carbon adsorption box, etc., this paper mainly talk about how PP plate processing PP tank.
The design drawings of the PP water tank need to be determined. Engineers use AUTO CAD drawing software to draw the dimensions, length, width and height of the PP water tank according to user needs. It should be noted that the bottom plate and top plate of the PP water tank need to leave edges according to the specifications, that is, to leave welding space. General environmental protection reserves about 40mm of space according to the specifications.
Pay attention to the actual volume and thickness of the PP water tank when designing. It is necessary to clarify whether the dimensions provided by the customer are external dimensions or internal dimensions. If they are external dimensions, the thickness of the PP board should be deducted when drawing; if they are internal dimensions, they must be clearly marked when drawing the drawings to avoid misunderstandings during confirmation and production.
if the customer gives a volume requirement, it is clear whether it is the actual volume or volume. The customer gives the effective volume, so when designing a PP water tank, it is often necessary to enlarge it a little and leave 5% of the space. Of course, the external dimensions must still be considered. Consider the customer’s on-site installation and transportation size restrictions.
At the same time, pay attention to the thickness selection of the PP board, which is greatly related to the volume and reinforcement method of the PP water tank. If the volume is large, the thickness of the selected plate is thin and the reinforcement method is unreasonable, the PP water tank will be at risk of deformation during use. Although it does not affect the use, it is not beautiful enough. Choosing the appropriate plate thickness and using channel steel to reinforce the outside of the PP water tank horizontally and vertically can effectively prevent this risk.
After the design drawings are completed, they are provided to customers for confirmation. If there are no problems with the drawings, production can be arranged. Customized PP water tanks are usually welded with PP plates. After the staff of the production workshop get the production drawings, they calculate the number of PP plates required and use the engraving machine to cut them according to the size and shape of each part. Because the engraving machine will cut the size more accurately.
However, before formal cutting, the position of the four side plates and how to cut them must be considered. Secondly, pay attention to the elevation of the opening. For example, if a DN25 flange is to be installed on one side, then the hole should be engraved on this hole, and 32mm should be opened, because the outer diameter of the DN25 pipe is 32mm.
After cutting, the next step is to splice the PP water tank. After splicing and forming according to the requirements of the drawing, use the fan-shaped mouth of the PP welding gun and high-spot welding to fit the shape. Only triangular welding rods can be used for welding. The type of welding rod and welding method are determined according to the process requirements. There are mainly flat welding rods and triangular welding rods. There are mainly two welding methods: conventional welding and blow welding. Usually the water tank is at normal pressure, and conventional welding is used. If it is under pressure, blow welding is required, mainly considering the strength of the PP water tank.
PP tank after forming, it is necessary to strengthen the tank, to strengthen the way has two kinds, a kind of to strengthen inside, inside the water tank, welding tic-tac-toe frame welding, another for external strengthening, the flange, hoop and channel steel tank, reinforce PP tank strengthen way depends on the design, design to strengthen the purpose is to increase the strength of the tank.
PP water tank after strengthening, the back of the work is welding flange, PP plastic flange need to pay attention to the length, and strengthen the way, part of the flange need to have a certain bearing function, such as: the installation of the level gauge, there is a certain weight, completely stressed on the flange, at this time, the PP flange triangle support to strengthen processing.
After PP water tank production is completed, pan-pu environmental protection needs to spend a certain labor cost, to the appearance correction, wipe clean, clean up the tank internal garbage, do the water experiment, to ensure that no leakage, can be arranged for delivery.
The above process is from PP sheet how to process into PP water tank of the whole process, pan pu environmental protection specializing in PP water tank processing services.
