износостойкие литья
It is important to know that the shape of the sand has an important impact on the surface finish of the casting. Circular sand is better than triangular sand because the triangular sand has a large gap, which is easy to lead to defects such as porosity; According to the nature of the casting, the sodium silicate quartz sand is selected to form a spalling layer, and combined with the characteristics of cooling and shrinkage of the casting, the surface defects are reduced. Coating a protective layer on the surface of large castings, such as the film on a coated sand mold, can improve the surface finish of the sand mold and reduce the surface defects of the casting.
Drilling is a fundamental process in various industries, from oil and gas extraction to mineral exploration, construction, and even scientific research. The success of any drilling operation largely depends on the materials used during the drilling process. This article will delve into the different types of drilling materials, their properties, and their significance in enhancing drilling efficiency and safety.
እኩል ሆነ፡ የተለያዩ ቅርንት/ምር እንደዚህ ይቀርቡ፡፡ ይህውየኒ ሌዋዬን እንዳንእል ያደርጋለሁ。 ወይዔሪያ ጉኖ ይኖርባቸው ለሚያንዛ ዻይ ይሙይ፡፡ ዕውዴም በይወርዱ፡፡
barras de perfuração de metal duro

Advantages of DTH Hammer Drilling
Mud pumps are essential equipment in various industries, particularly in oil and gas drilling, mining, and civil construction. Their primary function is to circulate drilling fluid or mud, which cools the drill bit, eliminates cuttings, and maintains pressure in the borehole. Given the critical role they play in these operations, the selection of reliable suppliers of mud pumps is crucial for ensuring operational efficiency and safety.
The application of the 185 CFM portable air compressor spans multiple industries. In construction, it is commonly used for powering tools such as jackhammers and air chisels, making it invaluable for heavy-duty projects. In manufacturing, it assists in the operation of assembly line machinery and pneumatic systems. Furthermore, for automotive professionals, this compressor is essential for spray painting vehicles or inflating tires efficiently.
The pitman is a crucial component that transmits motion from the toggle mechanism to the movable jaw plate. It typically features a connection to the eccentric shaft, which causes the pitman to move in an elliptical arc. This movement is essential for achieving the force necessary to crush the materials effectively. The pitman must be robust and designed to handle the stresses of operation.
Cleaning method:
Fill the pump with water
Open the inlet door and clean the clogged part of the pipeline
Plug the leak area and check whether the packing is wet or compressed
Fill the pump with water
Open the inlet door and clean the clogged part of the pipeline
Plug the leak area and check whether the packing is wet or compressed