Mechanical parts processing plant to tell you the product of historical evolution and type a, machinery parts processing factory about the history of the mechanical parts
: since the emergence of machinery have the corresponding mechanical parts.
But as a discipline, mechanical parts separated from the mechanical structure and mechanics.
With the development of mechanical industry, a new design theory and method, the emergence of new materials, new technology, mechanical parts entered a new stage of development.
The finite element method and fracture mechanics, elastic hydrodynamic pressure lubrication, optimization design, reliability design, computer aided design (
, the entity modeling,
Pro, Ug, Solidworks等)
, system analysis and design methodology, such as theory, has been gradually used in the research and design of mechanical parts.
Better combination of a variety of disciplines, combination of macro and micro to search new principle and structure, more dynamic and precise design, more efficient use of the electronic computer, the further development of design theory and method, is the important trend in the development of the discipline.
23, according to a notice issued by the companies import declaration time shall prevail, since January 1, 2007, for domestic enterprises to develop, manufacture large opencast mechanical shovel excavator and large parts of the coal mining equipment and imported key parts and raw materials by the payment of import duties and import VAT implement & other;
First collection & throughout;
Processing, tax refunds as the national investment, into state capital, the development of new product is mainly used in the enterprise.
Notice to determine the specific type and type excavator and coal mining equipment, such as electric haulage shearer, scraper conveyor, scraper, reprint machine, hydraulic support, lifting equipment, large crushing station, etc.
2 say the type of machinery parts, machinery parts processing factory: category 1 is mainly used in precision machinery, to cooperate with the stability of the demanding, require parts in the process of using or by several times after the assembly, the parts wear limit of not more than 10% of parts size tolerance value, it is mainly used in precision instruments, meters, precision measuring tool surface, a very important component of the friction surface, such as the inner surface of the cylinder, precision machine tool spindle neck, coordinate boring machine main journal, etc.
2 class is mainly used for ordinary precision machinery, the demand is higher, to the stability of the coordination required parts wear limit of not more than 25% of parts size tolerance value, require good or contact area, mainly in a variety of applications such as machine tools, tools, and cooperate with the surface of the rolling bearing, taper pin hole, and higher relative speed contact surfaces such as sliding bearing with the surface, the gear tooth face, etc.
Class 3 is mainly used in general machinery, requirements of mechanical parts wear limit does not exceed 50% of the size tolerance value, there is no relative movement contact surface of parts, such as box cover, sleeve, close to the surface, the key and the key way of working face;
Contact surface relative speed is not high, such as stents hole, bushing, pulley shaft hole of the surface of the work, reducer and so on.
Given yuan is a commitment to the development of coating equipment and related equipment, manufacturing equipment and accessories manufacturing of high-tech enterprises, mainly engaged in coating production of spare parts, precision parts processing, machinery parts processing factory, batch parts processing, tel: 0086 -
NINGBO HENRY PARTS INC. have now make a decision to enlarge our company in other countries.
NINGBO HENRY PARTS INC. has been a leading server of for many years. Visit the website HENRY PARTS for quality SERVICE.
Choose the right platform for selling SERVICE and we'll reach the right customers. But if we have the right idea in the wrong platform, that still adds up to the wrong idea.
We began investing in our workforce and negotiated deals with major suppliers and providers to lower the cost of equipment so the technicians could enhance the competitiveness of SERVICE right away.
Technology upgrades can pay for themselves quickly by improving SERVICE and enabling employees to accomplish more in less time. It may be time to focus on mechanical parts manufacturer to ensure they run smoothly and efficiently.