Used cars are often in some noise, noise is normal and there may be a hidden malfunction. My net reminds the majority of consumers: in the selection of a used car to start the vehicle or test noise, you can see some abnormal noise symptoms in the vehicle.
Exhaust pipe noise. This is a normal aging, especially for a year old car because of the body after the rain, the snow and the basic materials often contacted, and even the way to drag the bottom and other reasons, will cause corrosion, leakage and other phenomena, the gas will listen To the "Judg" sound, the exhaust pipe silences immediately.
Engine noise. The causes of engine noise analysis are complex. Some are due to normal wear of internal parts; some are due to human negligence, resulting in light leakage, such as an oil antifreeze or defined several times over maintenance kilometers or maintenance. The solution is to replace the part.
Chassis system noise. Many reasons lead to chassis noise, but as long as it is not the cause of serious resistance there is no problem. Such as wear, loose ball, the bearing of the shock absorber failure, can produce abnormal noise, it is recommended to the store to detect fault repairs.
According to the structure, it is mainly divided into four columns, single column (C type), horizontal, vertical frame, universal hydraulic press and so on.
According to the application, it is mainly divided into metal forming, bending, stretching, punching, powder (metal, non-metal) molding, press fitting, extrusion and the like.
Hot Forging Hydraulic Press
The large forging hydraulic press is a forging device capable of performing various free forging processes and is one of the most widely used equipment in the forging industry. At present, there are 800T, 1600T, 2000T, 2500T, 3150T, 4000T, 5000T and other series of forging hydraulic presses.
Four-column hydraulic press
The hydraulic press is suitable for the pressing process of plastic materials. Such as powder product molding, plastic product molding, cold (hot) extrusion metal forming, sheet stretching and cross-pressure, bending, turning, correction and other processes.
The four-column hydraulic press can be divided into four-column two-beam hydraulic press, four-column three-beam hydraulic press, and four-column four-beam hydraulic press.
Single arm hydraulic press (single column hydraulic press)
Expandable working range, use three-sided space, lengthen hydraulic cylinder stroke (optional), maximum retractable 260mm-800mm, preset working pressure; hydraulic system heat sink.
Gantry hydraulic press
It can assemble, disassemble, straighten, calender, stretch, bend, punch and so on the machine parts, and truly realize the multi-purpose of one machine. The machine table can move up and down, the size expands the opening and closing height of the machine, and the use is more convenient.
Double column hydraulic press
This series of products are suitable for press fitting, bending and shaping, stamping and indentation, flanging, punching and shallow drawing of small parts; forming process of metal powder products. It adopts electric control, with jog and semi-automatic circulation, which can maintain pressure delay, and has good slider guiding, easy to operate, easy to maintain, economical and durable. According to the needs of users, it can add functions such as thermal instrument, ejection cylinder, stroke digital display and counting.
Press Fit Machine,Press Fit Machine 2 Ton,C Frame Forging Press,Semi-automatic Press Fit Machine
CHENGDU ZHENGXI HYDRAULIC EQUIPMENT MANUFACTURING CO., LTD. , http://www.zxhydraulic.com