Constrained modal analysis results of tractor gearbox shell casting
Constrained modal analysis of tractor gearbox shell casting refers to the modal analysis carried out by simulating the connection between […]
Constrained modal analysis of tractor gearbox shell casting refers to the modal analysis carried out by simulating the connection between […]
Through the actual observation of the assembly and connection relationship of tractor castings, we can know that the engine, gearbox
Through the free mode calculation results, it can be seen that the first six modes of the gearbox shell are
The as cast matrix structure of vermicular iron is characterized by high ferrite content (40% ~ 50% or higher), but
In order to facilitate the calculation and accurately reflect the actual working environment of the gearbox, the working environment of
Tractor gearbox is the core component of the whole transmission system. The force generated by its internal gear meshing transmission
After the development of S1100 diesel engine crankshaft shell casting production, entrusted by other factories, the crankshaft shell casting process
(1) The chemical composition is strictly required. The carbon and silicon content of raw molten iron is higher than that
After trial production for many times, a set of skills of white mold burning empty shell of stmma bridge shell
In lost foam casting, under normal circumstances, there are many factors affecting the dimensional accuracy of casting, such as the
The mold free digital precision forming machine is used to realize the milling and forming of glass sand and resin
In recent years, lost foam casting has developed rapidly in China, and the development results are also gratifying. Among them,
In 1958, H.F.shroyer of the United States invented patent technology for making metal castings by using foamed plastic pattern and
The key to improve the mechanical properties of gray cast iron is to improve the shape, quantity, size and distribution
The wear-resistant parts of sand casting crusher are still very common in China, such as jaw plate, high chromium plate
This paper studies the bucket tooth fault detection of mining excavator bucket, combines digital image processing, computer vision and other
The grade of vermicular graphite cast iron is: rut + Digital. In the brand, “rut” is the capital prefix of
Vermicular graphite cast iron is a kind of gray cast iron with transition form between flake and spherical graphite. It
The casting material of tractor gearbox housing is nodular cast iron QT450-10. The material properties are given to the meshed
1. Defect characteristics Pores are found around the hot joint of the cut workpiece, and pores are also found on
The filling process and solidification process of typical box castings are simulated by using the casting process numerical simulation software.
Based on the box casting simulation technology and different process schemes, the simulation software ProCAST is used to simulate and
1. Simulation of mold filling process of excavator rear axle casting After improving the process, the mold filling process of
Due to the structural characteristics of the axle housing, the spiral case opening can only be placed upward and horizontally.
The market has higher and higher requirements for the quality of large and medium-sized steel castings. The castings requiring ultrasonic
Lost foam casting process includes riser system design, pouring temperature control, pouring operation control, negative pressure control and so on.
The introduction of lost foam casting process by some manufacturers is not cautious and scientific enough, lack of in-depth understanding
The molten metal interacts with the surface of the mold cavity at high temperature. After condensation, a layer of hard
The advantages of lost foam casting technology are more and more obvious, and many small and medium-sized enterprises have been
In recent years, lost foam casting has developed rapidly in China, and the development results are also gratifying. Among them,