Flaw detection in casting workshop of mass production of railway steel castings
The flaw detection in the casting workshop mainly detects the superficial cracks of steel castings after pre normalizing and air […]
The flaw detection in the casting workshop mainly detects the superficial cracks of steel castings after pre normalizing and air […]
The main defects in the trial production of hook body and hook tongue parts are crack, air hole, sand inclusion
The basic technological process of trial production of railway steel castings is introduced, the final technological scheme (serving the mass
Although the wet mold clay sand has good concession and refrigeration, crack defects still appear from time to time in
1. Problem description Sand casting bracket steel casting, steel casting No. 20e-70-k1432. The steel casting is a new external product
The shrinkage porosity and shrinkage cavity defects in the production of Wet Mold clay sand steel castings are mainly related
This steel casting is also an actual pouring example to test the simulation accuracy of the software. The shape of
Surface sand sticking defect refers to the adhesion of a layer of sand particles on the surface of steel castings
Sand inclusion defects are surface defects of wet molding clay sand expansion, which mainly appear on the upper and side
Bowl lining steel castings are the products produced by the machinery factory of Shougang Mining Company. The material is wear-resistant
More advanced methods are adopted to accurately predict the shrinkage cavity and porosity defects in the solidification process of steel
The foundry industry has a civilization history of more than 6000 years in China, and now it is facing the
The casting defects of coupler tongue include crack, sand inclusion, mechanical sand sticking and other defects. In the actual trial
The blow hole defects produced by wet molding clay sand cast steel process are mainly intrusion blow hole and precipitation
Many parts of construction machinery such as bulldozers and excavators are cast steel castings, which often have shrinkage defects. Light
The defects of shrinkage cavity and porosity are briefly introduced. Combined with the theories of filling capacity of liquid metal,
The main casting defects of coupler body include crack, air hole, sand inclusion and mechanical sand sticking. The main parts
Different steel casting production processes determine different production processes, but they can be basically divided into process design, model making,
1.Problem description Sand casting boom steel casting, steel casting No. 322232642, is an accessory of atlas process engineering machinery rock
Inspection and test are important means to ensure the quality of steel castings and the process quality of steel castings.
When designing steel castings, the sensitivity of the mechanical properties of cast alloys to the wall thickness of steel castings
The steel castings were trial produced in two batches, and the first time was qualified, and the second time there
In order to verify the feasibility and universality of the proposed process design improvement method, three typical steel castings produced
The production of coupler is divided into two work areas: sand casting and finishing assembly. The main processes of sand
Through the production verification of product k141 and the implementation of lack of vision countermeasures, it can be seen that
Compared with foreign countries, the research on numerical modeling of casting solidification in China started late, but made rapid progress.
The traditional process tooling design is carried out for the bracket steel castings of a certain construction machinery. According to
The ultimate purpose of railway steel casting production is to obtain high-quality parts that meet the requirements of product quality
Thin wall structure accounts for more than 65%, the wall thickness of thin wall is 14-15mm, and the wall thickness
① Furan resin sand process The average amount of resin added is 0.9%, the amount of curing agent added accounts