Quan zhou Jing Long Machinery Co., Ltd. specializes in Gravity Casting Machine

Phone  :  86-15880902677  丨  86-13004834129

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How to place an order on sand moulding process ?
2019-06-28
The policy of brass induction melting furnace is the business core for Jingda. Welcome to visit our factory! Quan Zhou Jing Long Machinery Co., Ltd. Is Dedicated to the Production of sand moulding process Compared with other products in the same category, copper melting furnace has the following major features. Jing Long Machinery Company always gives priority to customers and services. With a great focus on customers, we strive to meet their needs and provide optimal solutions.

Junior high school chemistry summary !!! 1. chemistry is an experiment-based natural science that studies the composition, structure, nature and change laws of substances.What physics and chemistry have in common: natural science based on experiments.2. the fundamental difference between chemical change and physical change is whether there are any new substances.Some phenomena such as heat release, light emission, discoloration, gas release and precipitation occur in chemical changes.3. physical properties--State, odor, melting point, boiling point, hardness, density, extensibility, solubility, volatility, conductivity, adsorption, etc.4. chemical properties--Oxidation, reduction, metal activity, activity, stability, corrosiveness, toxicity, etc.5. after heati

Working Principle of front filter 50 Laminated filterPrinciple: it is thin and specific plastic stacks with a large number of micron-sized grooves engraved on both sides. when a string of equivalent-mode stacks are tightened through spring and liquid pressure on specially designed inner supports, the trench crosses between the stacks to form a series of filter units of about 100 microns.When filtering, the water passes through the stack from the outside, and the filter stack is tightly pressed together under the action of each hydraulic force of the spring, and the impurity particles are trapped at the intersection of the stack, filtered water flows out of the filterBackwashing state, when a certain pressure difference or time is reached, the system carries out the flushing controller to control the valve to change the direction of the water flow so that the impurities on the stack are rushed outDisadvantages: incomplete flushing of impurities, uneven filtration accuracy, no sewage outlet
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