Design of gating system for fixture casting (part 2)
Calculation of resistance cross section The total sectional area a can be calculated according to the following formula =Q/KTL in […]
News
News
Defect characteristics and remedy of lamellar oxidation spot in sand casting
Defect characteristics and detection methods It is often found after sand cleaning or sand blasting of castings that the layered
Scientific
Influencing factors of crack formation in low pressure casting of automobile parts
In the casting of automobile parts, the wheel casting is a little different. Because it needs to meet a series
Scientific
How to choose top pouring system, bottom pouring system and step pouring system
For the convenience of research, the pouring system is classified into top pouring, bottom pouring and step pouring according to
News
Design of gating system for fixture casting (part 1)
The pouring system is a channel to guide liquid metal into the mold cavity, which is composed of sprue cup,
News
Characteristics, causes and prevention of casting cold insulation defects
Features: The appearance of the casting is incomplete, with a crack like gap or broken flow, and the metal edge
Scientific
The influence of metallurgical and modeling factors on shrinkage porosity
At present, there are many researches on the influence of metallurgical and molding factors on shrinkage cavity and porosity of
Scientific
Formation mechanism of crack in low pressure casting of automobile parts
Due to the use of lightweight aluminum alloy materials, compared with the steel and cast iron used before, automatic production
Scientific
Key technical problems of compound squeeze casting equipment
Because the equipment is the core platform for the implementation of the technology, and the composite squeeze casting method is
News
Design of sand core for fixture casting
The function of sand core is to form the inner cavity, hole of casting and the part that can’t produce
News
Defects of sand inclusion and scab in steel casting and preventive measures
Sand inclusion refers to that there is a layer of metal lump or sheet on the surface of the casting,
News
Surface casting defects of die casting (part 3)
7 Discoloration and spots (1) characteristics: There are different colors and spots on the casting surface. (2) Causes: ① Improper
Scientific
Forming method of composite squeeze casting
1. Definition of composite squeeze casting Direct squeeze casting technology pressure directly acts on the surface of liquid metal, the
News
Dimensional tolerance of fixture casting
Dimensional tolerance of castings refers to the difference between two allowable limit dimensions of nominal dimensions of castings. Within two
Scientific
Basic theory of numerical simulation of forging process
The process of loading metal raw materials with mold and other equipment to produce plastic flow to produce products that
News
Prevention of sand hole and casting slag defects in cast iron
Features: small holes filled with mold (core) sand inside or on the surface of defects are called sand holes. If
Scientific
Research status of squeeze casting die
The main function of the squeeze casting die in the forming process is to complete the liquid metal forming, to
News
Determination of casting process plan for fixture casting
Production conditions, structure and technical requirements of fixture Product production nature – mass production Part material – 35Cr The part
Scientific
Research hotspot and direction of EPC
Hot spots 1: reduce or eliminate the casting defects of lead alloy in EPC The biggest problem of making lead
News
Raw materials for green sand in sand casting
Green sand is composed of original sand, clay, additives and water in a certain proportion. The commonly used feeding sequence
News
History and development of investment casting technology in China
Lost wax casting is now called investment casting. It is a kind of casting technology with little or no cutting.
Scientific
Research status of melt conveyor in Squeeze Casting
In the early application of squeeze casting technology, the transportation of molten metal is basically manual transportation and mold filling.
News
Characteristics of metal casting, sand casting and die casting
Casting can also be divided into gravity casting and pressure casting according to the pouring process of liquid metal. Gravity
News
The engine cylinder block and cylinder head produce the casting veins
Usually in the inner surface or hot spot of the casting, such as the water jacket cavity of the cylinder
Scientific
Research status of Squeeze Casting Technology
A large number of researches and applications have been carried out on the squeeze casting forming technology in foreign countries.
Scientific
Prediction of several main casting defects
1) Prediction of shrinkage porosity and porosity Shrinkage cavity and shrinkage porosity are the holes that appear when the temperature
News
Surface casting defects of die casting (part 2)
4.Casting deformation (1) characteristics: ① Overall deformation or local deformation; ② the geometric drawing of the die casting is inconsistent.
Scientific
Application and analysis of carbon emission in sand casting production system
1. Application case carbon emission estimation The material of a casting is HT150, which is produced in batches. As shown
News
Characteristics of wet mold and dry mold sand casting
Clay sand mold can be divided into wet mold, dry mold and surface drying mold. The main differences among the
News
Casting process design of casting mould
In casting production, mold is very important. All kinds of process knowledge we talked about before should be included in