Cement pipe manufacturers analyze the production of magnesium oxychloride for concrete drainage pipes
Cement pipe manufacturers analyze the production of magnesium oxychloride for concrete drainage pipes . Cement pipes are one of the common equipment in our day. Its use is very extensive. It is crucial in our day. Let ’s talk about it next. What are the precautions for the production of magnesium oxychloride cement pipes? I hope to help you.
First of all, we must fully understand the physical and chemical indicators of magnesium oxide cement pipes, and understand the different characteristics of magnesium oxide for construction and other uses. The magnesium oxide used for construction must be high in silicon and low in calcium, and its activity should be between 65% ± 2, which must not be less than this specification. To meet this specification, the parameters for selecting magnesium oxide must be: content; MgO 80-86%; Active CaO 1-1.5% SiO2 5.5-6.5%; Ae2O3 2.2-2.9%; Fe3O4 3.0-4.0% Loss on ignition can be 3-11%.
In practical use, the goals of magnesia cement pipes are not the same, and the production has brought a lot of trouble, so the manufacturing methods in different regions are also different, which is basically to meet the requirements of production to formulate formulas. The key factors of the formula are three aspects: (1) changes in climatic temperature, (2) magnesium oxide content and loss on ignition, and (3) Baume degree of magnesium chloride solution.
The three have an inseparable internality and cannot be ignored at all times. Therefore, in order to correctly use in the production formula, it is necessary to flexibly grasp and use the connection between the three.
Let me talk about the relationship between temperature and the loss of magnesium oxide: the two are inversely proportional, that is, the higher the temperature, the lower the loss of magnesium oxide and the higher the magnesium content. The Baume degree of the magnesium chloride solution is made according to the climatic temperature and the target of magnesium oxide. There is no single fixed relationship between the three. Manufacturers should strictly control the quality of various materials as the main materials in production, such as: magnesium oxide, magnesium chloride and glass fiber non-woven fabrics, etc., should be selected according to the specific situation according to the share and quality.
1 prenatal preparation
According to the temperature and the magnesium oxide target solution purchased on time, chemical elements are added according to different conditions.The solution must be made one day before production to make the solution fully responsive and allow it to fully precipitate before it can be used.
All kinds of dry materials should be placed separately. Measured according to the formula share and put it into a bag and put it on the mixing table for use.
Put the glass cloth on the guide frame of the plate making machine.
Production of release agent: 1 part of emulsified oil: 4-6 parts of water. When the water to be manufactured is heated to 40 ° C, it will participate in the emulsified oil to make it fully dissolved, and it can be used after cooling.
2 craft manufacturing
Manufacturing process according to planning requirements. If the surface of the board is required to be bright, it must be manufactured according to its slurry process. In practice, it should be designed according to different conditions. The overall manufacturing process configuration is as follows:
Manufacturing process of light-weight composite thermal insulation wallboard
The whole manufacturing is a rolling process: 1 into the template—2 glass fiber cloth—3 mixing materials—4 glass fiber cloth non-woven fabric—5 cutting—6 download and enter the reaction curing area—7, 14-18 hours after demolding into the health area— 8 Natural health 48 hours for hydration treatment 18-24 hours-9 cold plates after drying and cut to a fixed length-10 finished products into the warehouse.
3. Post-release processing
After the demolding, only the response of the magnesium oxide board reaches 60-80%, and the remaining 20-40% is echoed during the maintenance after demolding. The precautions during maintenance:
1 When demolding, the board should be demolished above the channel and the bottom of the board should be flat.
2 The height of palletizing shall not be higher than 1.2m.
3 Heating temperature should not be higher than 55 ℃
4 Pay attention to the temperature, and water the ground if necessary.
5 After 72 hours, it must be inverted into the sawing process, and the composite wall panel must be sawed after 5 days.
6 It is necessary to pay attention to the late temperature rise of the cement pipe, and the temperature must not be too high
Our company has been developing into a brand enterprise for the production and processing of cement pipes in the northern region for more than ten years. We take the responsibility of making high-quality and high-quality cement pipes as our mission, and provide high-quality services for customers who come to consult. We warmly welcome new Old customers come to the factory to buy!