Small diameter welded stainless steel globe valve related advantages
The new small-diameter welded stainless steel globe valve is a new generation of replacement products that are developed and produced by the new-type small-diameter welded shut-off valve instead of the traditional thermal power plants. Product design has the following characteristics:
Pairs of sub-tapered seal structure for the advanced spherical seal structure, the seal pair in any case are well matched;
Valve, the valve body sealing surface Hard alloy with high hardness of hard alloy material with a special process of forming and processing, valve sealing surface hardness of HRC60 (ordinary power plant valve sealing surface hardness is generally around HRC35-40) Even if the use of frequent opening and closing the sealing surface is still intact, without any indentation, changing the traditional products often pressure test valve surface sealing surface that appears deep and irregular indentation conditions, thereby greatly improving the valve Sealing and service life, but also to sealing surface anti-cavitation, anti-erosion ability greatly improved;
After the valve is closed, the valve stem will enter into the high temperature medium and will increase slightly due to the thermal expansion. As a result, the specific pressure between the sealing surface of the valve body and the valve disc increases (even crushing the sealing surface) and the opening torque increases. New products learn from foreign products? (Such as Japan's Okano high temperature and high pressure globe valve) design, the two bars to compensate for the role of the stem to absorb the thermal expansion of the valve stem;
The structure of the stem nut was improved by directly pouring aluminum bronze gold (the hole in the middle of the copper alloy) in the upper hole of the bracket and then directly processing the trapezoidal thread thereon, not only improving the coaxiality (eliminating the cumulative error of concentricity) , To improve operational flexibility, but also greatly reduce the copper alloy consumption;
Manual valve with £ 3.5mm steel stamping handwheel (the introduction of German technology), reducing the valve weight; hand wheel strength, toughness than the cast iron hand wheel has been greatly increased, thereby increasing the hand wheel in transport, use of the anti-accident Impact ability; Handwheel cooling area (surface area), low temperature operation is not hot, stainless steel globe valve;
The packing plate adopts an open type pressure plate to facilitate the operation. The upper end of the opening is provided with a small boss to ensure that the upper part of the section screw will not slip due to accidental impact, thus improving the safety and reliability.
Increasing the packing plate and the upper surface of the packing pressure cone cone angle (15 ° to 30 °), making both ends of the anchor bolt bead nut unsynchronized, unbalanced, the pressure plate cone can really pressure Spherical sliding supporting, automatic centering to ensure that the pressure sleeve is always able to vertical and balanced packing, and to avoid pressure stem askew and stuck stem surface phenomenon;
Because there may be a slight gap between the handwheel square wheel and the valve stem body, in order to avoid loosening the nut after the handwheel (handle) is operated for many times, a spring washer is added to prevent the looseness under the nut;
The body and the bracket connection using cold rolling, flexible grinding, multi-bit multi-tool drilling, milling, powder metallurgy powerful anti-nesting, body, cover and other parts using the new method of finished products and other advanced technology to improve processing efficiency , Improve processing quality, compared with conventional products, improve product performance and life expectancy at the same time, greatly reduce product manufacturing costs and product prices.
Mechanical mold frame: an important role in modern manufacturing process
With the continuous progress of science and technology, the development of modern manufacturing technology is changing with each passing day. Among them, the mechanical plate mold frame plays a decisive role. This paper will discuss the concept, design principle, application field and future development trend of mechanical plate mold frame in detail, and reveal its important position in modern manufacturing industry.
First, the basic concept of mechanical plate mold frame
A mechanical die frame, also known as a die frame, refers to a metal structure used to hold and support a die. In the manufacturing industry, mold is an important production tool, used for forming, cutting, stamping and other processes. As the carrier of the mold, the quality of the mechanical plate mold directly affects the performance and production efficiency of the mold.
Second, the design principles and methods of mechanical plate mold frame
1. Stability: The mechanical die frame must have sufficient stability to ensure that there will be no deformation or vibration during the production process.
2. High precision: In order to ensure the precise fit of the mold, the mechanical plate mold frame needs to have high precision processing requirements.
3. Easy maintenance: Convenient and quick maintenance and replacement of molds is an important consideration in the design of mechanical plate molds.
4. Diversity: For different kinds of molds, mechanical plate molds need to have a variety of specifications and adaptability.
Third, the application field of mechanical plate mold frame
Mechanical die frames are widely used in various manufacturing fields, such as automobiles, electronics, aerospace, furniture and so on. There are many kinds of molds, including injection molds, die casting molds, stamping molds, etc., and each mold needs the corresponding mechanical plate mold frame to support.
Mechanical Plates,Plastic Formwork processing,Plastic Shuttering manufacturing,Plastics Mold Design
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