High Velocity Oxygen Fuel System Hvof Equipment Thermal Spray Equipment Tungsten Carbide Coating Machine Hvof Machine Hvaf Machine Hard Chrome Plating Machine

• Type: Coating Production Line
• Coating: Powder Coating
• Substrate: Steel
• Certification: CE, ISO
• Condition: New
• Control Type: Full Closed-Loop PLC Control
• Model NO.: HV-8000
• Input Power: 5000W
• Kerosene Pressure/Flow: 1.2MPa
• Oxygen Pressure/Flow: 1.6MPa
• Transport Package: Wood
• Specification: powder feeder, spray gun and control cabinet
• Trademark: Lijia
• Origin: Zhengzhou, China
• HS Code: 8424899990
• Production Capacity: 100/Year

Product Description

Component	Characteristic	Parameter
HV-8000 Control cabinet	1,Imported core accessories and mass flow-meter, full closed loop system, high-performance PLC control 2,Rugged design, Europe and the United States imported valves, pressure switches, flow switches, sensors,the quality is like Europe and the United States equipment. 3,Touch screen operation, intelligent automatic operation; 4,Process parameters on the touch screen panel at a glance; 5,One key operation, can realize the spraying process automation and real-time detection, 7 alarm prompt, can respond to the system fault immediately.	1,Program control: full closed-loop PLC control 2.Interface control: 12-inch touch screen 3.Flow control: mass flow controller 4. Input power: 5000W 5. Kerosene pressure: 1.2Mpa 6. Kerosene flow: 0~60L/h 7. Oxygen pressure: 1.6mpa 8. Oxygen flow: 0~60m3/h 9. Carrier gas pressure: 0.1~0.3Mpa 10. Carrier gas flow: 3~30L/min 11. Main parts origin: Germany, America, Japan, Italy

Component	Characteristic	Parameter
D-3000 Powder feeder	The powder feeder is a high precision powder feeding mechanism which outputs via metering panel, uses patented feeding valve, with powder evenly output, having higher precision compared with the conveying modes of scraper type, screw and vibration, etc.;    Adopting small-flow nitrogen or argon gas as feeding gas, which, together with powder that arrives at powder outlet with rotation of feeding panel on the bottom, enters the spray gun, to save more gas than traditional mesohigh powder feeder.    Compared with the traditional double barrel type powder feeder, the metering disc type powder feeder is more fine and the powder particle size range is wider.	Feeding mode:metering panel 2. Cleaning method: barrel body turnover 3. Powder drying function: built-in heater 4. Powder cylinder mode: single cylinder type 5, self-cleaning function: yes 6,Volume of powder storing barrel:3.5L 7,Feeding gas: Nitrogen,argon 8,Pressure of feeding gas: 0.15-0.3Mpa 9,The carrier gas flow rate:0~15L/min 10Feeding speed:0~220g/min 11Feeding precision:±1% 12,Powder size :5~150μm

 

Characteristics and advantages of HV-80-JP supersonic flame spraying system

1, Solid cabinet design, fuel flow control area, pressure display area, electronic control area are modular layout, panel clear and easy to operate.
2. All imported valves, pressure switches, flow switches and sensors from Europe and America are of the same quality as those from Europe and America
3, The use of Japanese mitsubishi high-performance PLC control, after ignition automatically maintain oxygen and fuel, carrier gas flow output.
4. All the internal fuel, oxygen, carrier gas and cooling water connected on the equipment have the detection function to ensure that all preparation processes can be fully tested before ignition.
5. Monitor the running status of the equipment in real time. Once any part is found to be operating beyond the safe range, the whole system will stop sharply, send an alarm and provide fault information.
6. The equipment starts and stops automatically under the control of PLC, which reduces the possibility of operator's misoperation.
7. Communication interface is set up inside the equipment to control the operation of peripheral devices.
8. Signal shielding measures are adopted to protect peripheral devices from electromagnetic interference during high frequency arc ignition.
 

Chromium plating is a traditional surface plating technology, which has been used for more than 70 years. The chromium plating layer has high hardness, wear resistance, corrosion resistance and can keep the surface bright for a long time, and the process is relatively simple and the cost is low. For a long time, chromium coating is not only used as decorative coating, but also widely used as wear-resistant and corrosion-resistant coating for mechanical parts. Hard chromium plating is often used to repair damaged parts.
However, hard chromium plating process can cause serious environmental problems. It's not chromium itself that causes environmental problems,
It's the chromium plating process. Chromium is an inreactive element and can be safely used in everyday products and artificial joints.
The main problem is that the chromic acid solution used in the chromium plating process produces acid mist containing Cr(VI) and waste water. Therefore, countries on
Restrictions on chrome plating will get tighter. The United States, for example, switched the current air emission standard for hexavalent chromium from
0.1Mg/M 3 decreased to 0.0050 ~ 0.0005Mg/M 3. According to the U.S. Navy Department estimates, the U.S. Navy alone will need a one-time investment of $22 million to upgrade equipment after the implementation of the standard, and then will spend $46 million a year on collection, processing and other costs.
In addition, hard chrome plating has some other disadvantages:
(1) the hardness of electroplating hard chromium coating is generally HV 0.3 800 ~ 900, far less than some ceramics and cermet materials of high hardness and good wear resistance, and the hardness of hard chromium coating in the temperature rise will be due to the release of its internal stress and rapidly reduce, its working temperature can only be lower than 427ºC, Therefore, it is difficult to adapt to the working requirements of modern machinery under high temperature and high speed.
(2) There are micro-cracks in the chromium plating layer, which will inevitably produce penetrating cracks (as shown in Figure 1), leading to corrosive media infiltrating from the surface to the interface and corroding the substrate, resulting in rust spots or even peeling on the surface of the coating.
(3) plating process deposition speed is slow (about 25μm/h), plating 0.2 ~ 0.3mm thick coating often needs 2 ~ 3 classes of time, is not conducive to the application of thick coating.
Therefore, people have been trying to find a coating process to replace hard chromium plating. With the recent development of coating technology
Continuing to evolve, there are coatings that have proven cleaner, more effective, and even more effective than hard chrome plating
Lower cost. These coating technologies include physical vapor deposition (PVD), chemical vapor deposition (CVD), and laser coating
Layer technology and thermal spray technology, etc., where supersonic flame spray (HVOF) coatings cost hard with electroplating
Chromium coatings are comparable to some powder materials that are already cheaper than plating, and are still being reduced while plating hard chromium
Coating costs are rising, more importantly, thermal spraying coating technology in textile machinery, paper, aviation
The surface has been used successfully.