Sealing ball valve with high corrosion resistance and production process thereof
A high-corrosion-resistant, sealed ball valve technology, applied in the field of sealed ball valves, can solve the problems of easy corrosion, poor corrosion resistance of ball valves, and decreased sealing performance of ball valves, and achieve long service life, improved corrosion resistance, and simple structure. Effect
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Embodiment 1
[0052] see Figure 1-2 As shown, this embodiment is a sealed ball valve with high corrosion resistance, including an input-end outer shell 101, an output-end outer shell 102, a handle 103 and a ball valve spool 104, an input-end outer shell 101, an output-end outer shell 102 One end of the output end housing 102 is connected by bolts, and a handle 103 is installed on the top of the output end housing 102. One end of the handle 103 penetrates into the inner cavity of the output end housing 102 and is connected to the top of the ball valve spool 104. The ball valve spool 104 is rotatably installed. In the inner chamber of the output-end outer casing 102 , the inner chambers of the input-end outer casing 101 , the output-end outer casing 102 and the ball valve spool 104 communicate with each other.
Embodiment 2
[0054] Present embodiment is a kind of preparation method of modified epoxy resin, comprises the steps:
[0055] A1: Add 0.1mol eugenol and 100mL chloroform into a three-necked flask equipped with a stirrer, a thermometer and a constant pressure dropping funnel, and add 0.25mol tristimulus dropwise while stirring in an ice-water bath and a stirring rate of 200r / min. Boron chloride is dissolved in benzene to form a boron trichloride-benzene solution with a mass fraction of 20%, and the temperature is raised to 20°C to continue stirring and reacting for 10 hours. After the reaction is completed, the reaction product is rotary evaporated to remove the solvent, and intermediate 1 is obtained. ;
[0056] A2: Add 50g of intermediate 1 and 250g of epichlorohydrin into a three-necked flask equipped with a stirrer, a thermometer and a constant pressure dropping funnel, and add 2.0g of benzyl while stirring at room temperature and at a stirring rate of 800r / min. Triethylammonium chlori...
Embodiment 3
[0062] Present embodiment is a kind of preparation method of modified epoxy resin, comprises the steps:
[0063] A1: Add 0.1mol eugenol and 100mL chloroform to a three-neck flask equipped with a stirrer, a thermometer and a constant pressure dropping funnel, and add 0.25mol tristimulus dropwise while stirring in an ice-water bath and a stirring rate of 300r / min. Boron chloride is dissolved in benzene to form a boron trichloride-benzene solution with a mass fraction of 30%, and the temperature is raised to 50°C to continue stirring and reacting for 15 hours. After the reaction, the reaction product is rotary evaporated to remove the solvent, and intermediate 1 is obtained. ;
[0064] A2: Add 50g of intermediate 1 and 250g of epichlorohydrin into a three-necked flask equipped with a stirrer, a thermometer and a constant pressure dropping funnel, and add 2.0g of benzyl while stirring at room temperature and at a stirring rate of 1000r / min. Triethylammonium chloride, continue to ...
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