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Shot Peening & sand blasting
Shot peening Shot peening, also known as shot peening, is one of the effective methods to improve the fatigue life of parts. Shot peening is to spray a high-speed stream of projectiles onto the surface of the workpiece, causing the surface of the workpiece to undergo pla...Read more -
Causes of Shrinkage Cavities and Shrinkage in Cast Iron Castings
Formation of shrinkage cavities and shrinkage After the molten iron fills the mold, liquid shrinkage occurs immediately. At this time, shrinkage can be compensated from the pouring system. When the surface temperature of the cast iron part drops to the solidification tem...Read more -
Negative Pressure Casting
Negative pressure casting, also known as vacuum-sealed casting, reduced pressure casting, or V-method casting, is a process that uses vacuum pressure to cover a heated, plasticized plastic film over the pattern and template. Dry sand without any binder is then filled int...Read more -
Gray Cast Iron HT250 Used for Castings
HT250 is a widely used gray cast iron material, which occupies an important position in the industrial field with its excellent mechanical properties and good casting processability. As a classic casting material, HT250 plays an important role in many industries such as ...Read more -
16MnCr5 Alloy Steel Used for Castings
16MnCr5 alloy steel is a commonly used alloy structural steel, belonging to case hardening steel. Due to its excellent strength, wear resistance and hardenability, it is widely used in the manufacture of custom steel gears, shafts and other mechanical parts that require ...Read more -
Detection of Castings Weight Deviation
Related Terms 1. Nominal Weight of Castings This includes the machining allowance and other process allowances, serving as the reference weight to measure the weight of the inspected casting. 2. Weight Tolerance of Castings The allowable range of variation in the wei...Read more -
Rust Prevention of Castings
Investment castings often require mid-term rust prevention. Rust prevention methods generally use rust prevention liquid treatment or oil seals. Castings must be cleaned before rust prevention. Casting cleaning The formula, temperature and use of commonly used cleaning l...Read more -
Welding Repair of Castings
Principle 1. Usually refers to castings that do not meet the acceptance technical conditions or order agreement, have casting defects but can be repaired. 2. The area and number of castings allowed for welding repair are specified. The defect type is usually specified in...Read more -
Design of Gating System at Foundry
The gating system is the channel in a sand mold that guides molten metal into the mold cavity. The success of the casting process depends on the properties of the metal, the characteristics of the mold, and the structure of the gating system. A well-designed gating syste...Read more -
Shelling and Surface Cleaning of Castings
Shelling and surface cleaning of castings Casting group shell cleaning Cooling of castings After the shell is poured, the cooling time of the casting in the mold is related to the material, shape, size and production conditions of the casting. Generally, for alloy castin...Read more -
Incomplete Annealing & Spheroidizing Annealing of Metal Castings
Incomplete annealing of Metal Castings Definition: Incomplete annealing is a heat treatment process for steel castings, which involves heating the steel to a temperature range between Ac1 and Ac3 (for hypoeutectoid steel) or Ac1 and Accm (for hypereutectoid steel), cooli...Read more -
Mold Assembly in Castings
Mold assembly includes core setting, installation of chillers, core supports, and venting facilities, as well as securing the mold after assembly. The mold assembly for stainless steel investment castings focuses on wax pattern assembly and shell making, omitting the tra...Read more
