Ductile cast iron
keyword：
Graphite cast iron is a common casting in the casting industry, made of ductile iron. Ductile iron is a kind of high strength cast iron material, with good mechanical properties and processing properties, widely used in machinery manufacturing, automobile manufacturing, construction, chemical industry and other fields. In order to produce excellent nodular cast iron, the majority of foundry workers have done a lot of research on its technology.
keyword：
In the production of nodular cast iron, it should be noted that the eutectic solidification of nodular cast iron is a typical paste solidification method, which has a process of primary (liquid) contraction, volume expansion and secondary contraction before solidification. During the solidification process, when the adjacent eutectic clusters contact each other,
keyword：
In order to ensure the product quality of ductile iron castings, it is necessary to optimize and control the casting process. For example, reasonable gating system and riser design, controlling casting temperature and cooling speed, adding alloying elements and other methods can be used to reduce the generation of casting defects. In addition, it is also necessary to carry out the appearance quality inspection of castings, sampling batch division and inspection rules, other inspection items, marking and quality certificates, and castings rust prevention, packaging and storage and transportation requirements.
keyword：
Nodular cast iron is a kind of cast iron material obtained by spheroidization and inoculation treatment of spherical graphite, its mechanical properties are much higher than gray cast iron, and even in some applications can exceed steel.
keyword：
Regardless of the type of transducer used, the most fundamental factor is usually the intensity of the cavitation effect it produces. Ultrasound, like other sound waves, is a series of pressure points, namely a wave that alternates between compression and expansion (as shown in the figure below). If the sound energy is strong enough, the liquid is pushed away during the expansion stage of the wave, resulting in bubbles; During the compression stage of the wave, these bubbles instantly burst or implode in the liquid, producing a very effective impact force, particularly suitable for cleaning. This process is called cavitation.
keyword：
Ultrasonic transducers are energy conversion devices that convert alternating electrical signals into acoustic signals or convert acoustic signals into electrical signals within the ultrasonic frequency range. They are key components in ultrasonic equipment, and have received long-term attention in terms of energy conversion mechanisms and process design.
keyword：
Acting as NTK's original imported ultrasonic, with a complete range of products and stable performance, widely used in ultrasonic plastic welding equipment and ultrasonic metal welding equipment.
keyword：
These transducers come in the following types according to their conversion methods: These conversion methods each have their own advantages and disadvantages, and strain gauge transducers have advantages over other methods
keyword：
Wired and standardized equipment for transducers
Part of the basic management methods implement remote operation wireless and remote. The new technical specifications define a fieldbus sensor block to represent the remote operation management device on the basic HART device.
keyword：
High-power ultrasonic transducer
At present, the commonly used methods of frequency automatic tracking are as follows: collect the electrical signal of resonant frequency from the transducer by acoustic coupling, and then feed it back to the front amplifier to form a self-excited oscillator.
keyword：
Product
Always check product information and technical knowledge
Zhuozhou Xinfeng Foundry
Tel: +86-312-3782124 Mobile: +86-13833482349
Contact person: Manager Feng Fax: +86-312-3782012
Address: Sunjiazhuang Village Committee, Sunzhuang Township, Zhuozhou City, Baoding, Hebei Province
Zhuozhou Xinfeng Foundry www.300.cn | SEO