A pressure vessel is a vessel that can withstand high pressures and is commonly used for storing, transporting, and processing various gases, liquids, and gaseous liquid mixtures. The pressure vessel is mainly composed of vessel body, flange, seal, support and accessories. Common pressure vessels are gas cylinder, gas storage tank, distillation tower, reactor and so on.
The design and manufacture of pressure vessels must comply with relevant national standards and specifications, and pass strict inspection and testing to ensure their safety and reliability. During use, you must comply with the operation regulations and safety precautions, and periodically check and maintain the device to ensure its normal operation and safe use.
The main business scope is various heaters, waste heat boilers, pressure vessels, supportingair preheaters, air coolers, furnace accessories and accessories, and provide equipment installation, with EPC ability of projects. At present, our customers have covered all large and medium-sized petrochemical enterprises in China and established long-term strategic cooperative partnership with them. Products are exported to Southeast Asia, Middle East, and other regions.
Pressure Vessel,Reactor Tanks Vessel,Reactor Equipment Sales,Stainless Steel Reaction Reactor Jiangsu Gelan Environmental Technology Co., LTD , https://www.etfiredheater.com
38CrMoAlA nitrided extruder single screw barrel
Specification:
Screw Diameter: Φ 15- Φ 300
L/D ratio: 15-46
Product classification:
Aiming at different plastic products the screw can be chosen from: General type, pin type, barrier type, separation type, and gas-exhausting type, etc.
Technical Information
Base Materials:
1)38CrMoAlA(JIS SACM645)
2)42CrMo(AISI 4140)
3)9Cr18MOV
Bimetallic alloy materials:
1)Fe-based alloy
2)Ni-based alloy/Deloro alloy
3)Co-based alloy
4)NiCo-based alloy
5)Tungsten carbide/Wolfram carbide
Technics:
Heat treatment
High-frequency quenching
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
Bimetallic alloy centrifugal casting
Technical parameter:
Nitrided layer depth: 0.5-0.8mm
Nitrided hardness: 900-1000HV
Nitrided brittleness: Less than grade 1
Surface roughness: Ra0.4
Linearity of screw: 0.015mm
Hard-chrome plating hardness after nitriding: >=950HV
Chrome-plating layer depth: 0.025-0.085mm
Bimetallic layer depth: 3mm
Warranty and service: 1 year
Our advantages:
1)Excellent raw materials
2)Good customer service
3)Rapid delivery
4)Reasonable price
5)Production quickly
Experienced manufacture, we will be the best choice.
38crmoala Nitrided Extruder Single Screw Barrel