Port of machining by cutting and become, within many sharp-angled
transition, easy to cause uneven stress at the sharp corners,
produce craze. Modular design of welded together at the same time,
the forging of the valve seat diameter is relatively fixed, on some
valve size, its diameter is small, influence the flow capacity.
Causes the valve flow resistance to increase, the entire system
efficiency reduction. Due to the limitation of large size valve
forging technology and to save cost, many manufacturers usually
adopt the structure of the forging parts at both ends and the
center part of the valve body.Whether it's casting, forging.It is possible that the product is defective in processing.The main defects of casting are sand holes, air bubbles, etc.The main defects of forgings are large grains, cold and hard
phenomena, cracks, cracks and cracks.In order to obtain qualified product quality, the corresponding
castings need heat treatment to eliminate the stress in the casting
process. Meanwhile, X- ray, magnetic particle inspection,
permeability inspection and other detection methods are adopted.For forgings, this requires strict heat treatment of the weld and
corresponding testing methods to ensure.Ultrasonic testing is often required for forgings. In addition, it
should be mentioned that the welding process is very strict, and
the qualification of welding engineers is also the key to ensure
the quality of products.
Shaanxi Rongbao Machinery and Electronics Co.,Ltd.
Shaanxi Rongbao Machinery Electronics Co., Ltd.(formerly known as: Xianrongbao Machinery Electronics Co., Ltd.)
which located in the Fengjing Industrial Park is specialized inproduction of high-quality aluminum sand casting products, aluminum gravity die
casting products, low pressure and die casting products, CNC
We supply stainless steel casting, aluminum casting, copper casting and precise machining.
Products are widely used in automobiles, machinery, hydraulic
parts, hardware, explosion box, motor parts, power tools, valves,
flanges, air conditioning joints, robots, sewing, medical
equipment, gear boxes, pipeline parts, snow machines, pump boxes,
Our company currently covers an area of over5,000m2of production and manufacturing base, owns a high-quality
professional team, with first-class production equipment and
testing equipment to ensure high reliability of products. Two
patents for utility models have been obtained and certified by theISO 9001:2015quality management system.
Our company has been engaged in the production, processing and
sales of casting products and CNC processing products for 14 years. Our customers come from a diverse industry field. 90 % of casting and machinery products are exported to the United States, Europe, Australia, Russia and other
Under the guidance of "innovation is infinite, honesty is eternal",
Shaanxi Rongbao will display the grand prospectwith the spirit of "Struggle and forge ahead". All employees of
Shaanxi Rongbao warmly welcome people from all walks of life to
come to the guidance.