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Showing posts from August, 2019

What are the advantages of resin manhole cover material?

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What are the advantages of resin manhole cover material? Hello, everyone. The  Ductile iron manhole covers manufacturer  has brought you an article about the advantages of resin material. I have told you before, what kind of advantages does resin manhole cover material have? What are the common manhole covers in our daily life? We are more inclined to like the kind of manhole cover, resin manhole cover is more environmentally friendly, but also more durable, cost-effective is very high, we look at the advantages of resin manhole cover material together with composite manhole cover manufacturers. 1. Strong anti-theft performance: the resin composite manhole cover is made of unsaturated resin, glass fiber and other materials and the steel frame through special production process, which is formed by high-temperature grinding and pressing. The material has no recycling value, and it is very difficult to take out the steel bar (the cost of taking out the steel bar exceeds...

Anti-theft measures for cast iron manhole cover

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Anti-theft measures of cast iron manhole cover shared by  cast iron parts factory China . Ductile iron manhole cover  has advantages of good toughness, strong corrosion resistance, good plasticity, high strength, high casting efficiency and low processing cost. By municipal roads, highways, communications, electricity, tap water, communities, schools and other parks are welcome. The only drawback is often stolen, causing hidden trouble, so resin covers manufacturers are also aimed at this shortcoming, make the following anti-theft measures. Ductile iron artistic manhole cover 1, material theft Anti-theft materials may be a lot of new users are not very understand, cast iron materials can also be anti-theft? The answer is yes. Because the manhole cover is different from the original cast iron material, now the material is made of spheroidal ink material, and the material is made of spheroidal ink material without any recycling value. Ductile iron Grating 2, their...

What are the production equipment for cast iron manhole covers?

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Cast iron manhole cover production equipment Ductile iron manhole covers  have high strength and good toughness, so they are about 30% lighter than gray cast iron manhole covers of the same type. Nodular cast iron brand qt500-7, hot iron temperature is not lower than 1456℃, in the spheroidizing treatment with rare earth ferrosilicon magnesium alloy and choose low sulfur coke, spheroidizing level up to three. What is the production equipment of cast iron manhole cover? The following  cast iron parts factory China  manhole cover to tell you. 1, shearing machine, need to use the shearing machine to shear. 2, leveling machine, used for leveling the flatness of cast iron materials. Materials that have been cut must bend, including during processing, which requires leveling. 3, Sander. Remove impurities such as oxide skin or oil from cast iron. Composite resin square manhole cover 4, oil removal tools. It could be a tank, put lye in. Rain-hole covers are usually ...

In the process of using coated sand, common defects, main causes and solutions

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In the process of using coated sand, common defects, main causes and solutions are as below: 1. The surface of the type (core) is loose; The pressure of the core is too high or too low; The exhaust of the mold is not smooth; The mold runs sand due to the large gap of the box surface; The fluidity of the coated sand is poor or the gas permeability is poor. Use reasonable shooting pressure to improve the exhaust system to prevent helium; Use the material with small deformation as the core box; Choose coated sand with good fluidity and permeability. 2. The design of the shelling mold is unreasonable, the temperature of the core box is not uniform, it leads to unshelled because of low strength of the low temperature part; The melting point of the coated sand is low, the curing speed is slow, and the heat intensity is low. Improve the structure of the mold to make the temperature distribution uniform; Use the resin with high melting point, fast curing speed and high heat strength. ...

Die-casting aluminum Motor Casing

Die-casting aluminum Motor Casing The motor casing is a kind of casing specially designed for aluminum casing motor. The aluminum dc motor housing  is a motor that replaces the traditional cast iron casing with a die-cast aluminum casing. Product Introduce: The motor casing is a kind of casing specially designed for aluminum casing motor. The aluminum casing motor is a motor that replaces the traditional cast iron casing with a die-cast aluminum casing. It generally includes aluminum shell and aluminum die-cast housing According to the composition of aluminum alloy and the characteristics of production process, it is usually divided into two major categories: deformation and cast aluminum alloy. Product Feature: Light weight High strength Good heat dissipation Beautiful appearance Corrosion resistance Internal cutting and cutting free Product Advantage: Compared with iron motor casing, Die-casting aluminum Motor Casing  is light in weight, good...