Cold extrusion is a manufacturing process in which a metal or alloy is forced through a die to create a desired shape or form. This process is typically performed at room temperature, hence the name "cold" extrusion. Cold Extrusion Hydraulic Tool,Open Seam Bushing Installation Puller,Open Seam Bushing Mount Puller,Cold Extrusion Hole Strengthening Tool Yantai Dongyue Hydraulic Technology Co., Ltd , https://www.deeleap.com
1.1 Division of Explosive Gas Environmental Hazardous Areas Different countries and regions are divided into explosion hazardous areas according to their respective standards. According to the frequency and duration of the occurrence of explosive gas mixtures in China, the explosive gas environment is divided into Zone O, Zone 1 and Zone 2. (consistent with IEC International Electrotechnical Commission)
Zone 0: Continuous or prolonged exposure to explosive gas mixtures.
Zone 1: The environment in which explosive gas mixtures may occur during normal operation.
Zone 2: The environment in which explosive gas mixtures cannot occur during normal operation, or even the presence of explosive gas mixtures that are present for a short period of time.
Zone 0 generally exists only in sealed containers, internal gas spaces such as tanks, and is rarely present in the actual design process. Most of the cases are in Zone 2.
1.2 explosion-proof electrical equipment is divided into two categories:
Category I electrical equipment for underground mines Class II electrical equipment used in places other than mines Category II electrical equipment, classified as IIA, IIB, IIC, according to the maximum experimental safety gap or minimum ignition current ratio applicable to explosive gas mixtures And according to its maximum surface temperature is divided into six groups T1-T6.
1.4 Explosive gas mixtures are grouped by ignition temperature, see Table 1.
1.5 Explosive gas mixtures classified according to their maximum test safety clearance (MESG) or minimum ignition current ratio (MICR).
A cold extrusion Hydraulic Tool is a specialized tool used to perform cold extrusion processes. It typically consists of a hydraulic press or machine that applies high pressure to force the metal or alloy through the die. The tool may also include additional components such as a die holder, die set, and ejector system.
The hydraulic system of the tool provides the necessary force to deform the metal or alloy and shape it according to the die's specifications. The pressure is applied gradually and evenly to ensure a uniform extrusion without causing any damage to the material.
Cold extrusion hydraulic tools are commonly used in various industries such as automotive, aerospace, and construction. They are used to produce complex shapes and components with high precision and strength. Some examples of products made using cold extrusion include shafts, tubes, rods, and various structural components.
Overall, cold extrusion hydraulic tools are essential in the manufacturing process of many metal and alloy products, providing a cost-effective and efficient method of producing high-quality components.
Explosion-proof product grade Differentiating properties: Under the specified test conditions, the ratio of the minimum ignition current of the gas and vapor explosive mixture to the minimum ignition current of the methane explosive mixture. China stipulates that the gas and vapor hazardous materials have a minimum ignition current of scores IIA, IIB, and IIC. The minimum ignition current ratio ≤1.0,>0.8 is IIA; ≤0.8,>0.45 is IIB; ≤0.45 is IIC. For example, ethane, ethylene, and acetylene are classified as IIA, IIB, and IIC dangerous substances, respectively.