Instructions for installation of wafer butterfly valve
Wafer type butterfly valve is one of the most common valve types in industrial pipeline. The wafer type butterfly valve […]
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The installation and maintenance of electric ball valve
Electric ball valve is a kind of valve used to control pipeline medium and realize remote control. It is an
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Installation instructions for pneumatic ball valve
Before installation of pneumatic ball valve: Ensure that the installation position of the pneumatic ball valve is at the coaxial
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Wiring diagram description and control mode of explosion-proof electric butterfly valve
Explosion proof electric butterfly valve is a special control equipment for inflammable and explosive occasions. Its explosion-proof grade is ExdIIBT4
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Working principle of electric ball valve
The electric ball valve is mainly composed of electric actuator and ball valve. The plug body is a ball with
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O-type and V-type ball valve structure
O-ball valve structure: The valve body of the o-ball valve is equipped with a ball with a middle through-hole, and
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Type and classification of ball valve
Ball valve is a kind of valve with the ball as the closing part, mainly composed of valve body, valve
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Advantages and disadvantages of pneumatic ball valve with bracket
There are many kinds of pneumatic ball valves. According to the pressure, material, connection form and application medium, including control
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Advantages and disadvantages of pneumatic high platform ball valve
Pneumatic ball valve is one of the most widely used valve types in recent years. It is not only convenient
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Working principle of pneumatic ball valve
Pneumatic ball valve is composed of pneumatic actuator and ball valve. Instead of manual operation, it not only saves a
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Structure and principle of v-ball valve
V-ball valve structure: The ball core of v-ball valve has V-shaped structure, the valve core is 1 / 4 ball
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Structure and principle of o-ball valve
Structure of o-ball valve : The valve body of o-ball valve is equipped with a sphere with a middle through-hole,
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Working principle of ball valve
The opening and closing part of the ball valve is a ball with a circular channel, which rotates around the
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Difference and selection between full bore ball valve and reduced bore ball valve
Ball valve is the most widely used mechanical product in all valve markets. It is mainly composed of valve body,
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Analysis on the problems of inoculation treatment of cast iron
Before pouring, a certain amount of substance (inoculant) is added to the molten iron under certain conditions (such as certain
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Invitation letter of 2020 Chongqing foundry annual meeting
Time: May 26-28, 2020; location: Sun City, Wudu Hotel, Chongqing (★★★) Ⅰ、 Conference organizer Casting branch of Chongqing Mechanical Engineering
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The precautions for riser and chill of ductile iron parts
As we all know, the quality of nodular cast iron is related to the material and technology used. Besides, the
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Luoyang also the famous heavy industrial city in China begainning 1953
Soviet-style architecture Industrial museum China’s first tractor China’s first tractor manufacturing plant Luoyang Mining Machinery Factory Soviet-style living area Military
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The 17th national special casting and nonferrous alloy academic annual conference
The 17th national special casting and nonferrous alloy academic annual conference and the 11th National casting composite material academic conference
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The price of auto parts rose in half a year as a whole
Recently, China Insurance Industry Association and China Automobile Repair Association released the eighth issue of auto zero to zero ratio
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The competent authority of iron and steel foundry industry
Should the competent authority, in light of national conditions and practice and the provisions of this code, in consultation with
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The cooperation of iron and steel foundry industry
The code recognizes that requires effective safety and health system joint commitment between the authorities, employers, competent workers and their
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The experimental of lost foam casting process
A schematic of the lost foam casting system shown. Flask size is 250 mm diameter and 300 mm in height,
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The results and discussion of lost foam casting process
3.4 Effect of mold packing materials. The variation of casting density with mold packing materials is shown in Fig.10. The
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The conclusions of lost foam casting process
Was investigated various effects of process parameters such as the melting treatment, the packing material and the density model of
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Effect of Process Parameters on Porosity in Aluminum Lost Foam Process
Porosity is greatest fault in aluminum alloy castings, is also thought to be severe in aluminum alloy castings produced by
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The technology of lost foam patterns
In different countries, USA especially, the technology stock lost foam is considered a process completely innovative, when applied in industry,
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The results and discussion of lost foam casting process (part 2)
3.3 Effect of EPS foam density. The relationship between the density EPS foam is used as a pattern and density
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The preparation of lost foam casting
Prepared by Praxis models commonly applied in Foundry Research Institute, ie deposited ceramic layer of appropriate thickness of the polystyrene