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Application scope of asphalt spreader

Application scope of asphalt spreader

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2023-05-31

The "prime layer", "lower seal layer", and "adhesive layer" of the newly constructed road surface. The "prime coat" is generally sprayed with emulsified asphalt or asphalt diluted with kerosene; The "sticky layer" is generally sprayed with emulsified asphalt; The "lower sealing layer" is generally sprayed with hot asphalt (heavy duty asphalt or modified asphalt).

Maintenance and repair of pile drivers

Maintenance and repair of pile drivers

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2023-05-31

Winch, column guide rail, slewing mechanism, slewing brace, slant support adjusting mechanism, carrier sprocket, idler and driving wheel bracket shall be checked regularly and lubricated regularly.

Selection of loader?

Selection of loader?

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2023-05-31

Selection of model: Mainly based on the operating environment and purpose for selection and determination. Generally, operations are carried out in quarries and soft bases, and tire loaders with anti slip chains are often used;

Technical Development Trend of tunnel boring machine

Technical Development Trend of tunnel boring machine

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2023-05-31

Serialization and standardization. The design and manufacturing cycle of tunnel boring machine is shortened, and the after-sales service and maintenance of equipment are more convenient. The current design and manufacturing cycle is generally 8-10 months.

How to operate a crawler crane safely?

How to operate a crawler crane safely?

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2022-09-16

When the lifting load reaches 90% or more of the rated lifting capacity, the lifting action should be carried out slowly, and it is strictly prohibited to perform two or more actions simultaneously.

Component composition of crawler crane

Component composition of crawler crane

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2022-09-16

To assemble a truss structure with multiple sections, the length can be changed after adjusting the number of sections. The lower end is hinged at the front of the turntable, and the top is suspended and supported by a variable amplitude steel wire rope pulley block, which can change its inclination angle.

Cleaning and maintenance of concrete mixer trucks

Cleaning and maintenance of concrete mixer trucks

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2022-09-16

Free testing for abundant applications. The free testing campaign launched by concrete mixer truck manufacturers is often beneficial for car owners. Car owners can apply these testing campaigns to conduct specific physical examinations on their favorite cars, discover and eliminate potential problems in real time, and then save the high maintenance and protection costs that can appear in the future.

How to handle the

How to handle the "skip gear" of the excavator transmission?

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2022-09-16

When there is a "skip gear" when driving uphill, the gear can be placed in the low speed position or the first gear position, and the machine can be stopped when it reaches the top of the slope to troubleshoot; If the downshift is unsuccessful or if there is another "skip", the machine should be stopped according to the action instructions and requirements of the ramp shutdown, and then the fault should be eliminated. On the basis of galvanized coil, it is coated with color paint with certain technology to give more color to the product. The colorful and beautiful surface makes it more widely used

What types of excavators are there?

What types of excavators are there?

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2022-09-16

According to the bucket, excavators can also be divided into front shovel excavators, backhoe excavators, pull shovel excavators, and grab shovel excavators. Shovel excavators are mostly used to excavate materials above the surface, while backhoe excavators are mostly used to excavate materials below the surface.

The functional uses of concrete mixer trucks

The functional uses of concrete mixer trucks

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2022-09-16

Concrete mixer trucks are specialized trucks used to transport concrete for construction purposes; Due to its appearance, it is often referred to as a snail cart. These types of trucks are equipped with cylindrical mixing drums to carry the mixed concrete. During transportation, the mixing drum will always be kept rotating to ensure that the concrete carried will not solidify. After transporting concrete, it is usually necessary to flush the inside of the mixing drum with water to prevent hardened concrete from occupying space and reducing the volume of the mixing drum

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