Hammer commonly known as hammer, diesel generator set commonly used hand hammer tool can be divided into two kinds: one is a hard head hammer, hammer made of high quality steel; the other is a soft head hammer, hammer is hard Made of aluminum, copper, rubber, raw hides, or hardwood.
Hammer can be divided into three parts hammer, wedge and wooden handle, as shown below. The specifications of the hard head hammer are based on the mass of the hammerhead. Common specifications include 0.25kg, 0.5kg, 0.75kg, 1kg, 1.25kg and 1.5kg. The soft head hammer is mainly used to prevent the work piece from being hit by the steel hammer or hitting the hair, such as loading and unloading the mandrel, tapping the thin metal sheet and the smooth and clean workpiece with the protective layer.
The hammer handle is made of mahogany (other hardwoods can be used instead) to make an ellipse. The suitable length of the smooth and comfortable handle is equivalent to the length of the forearm. As shown in (b), it is usually 300-350mm. When using a hand hammer, the hand should be held tightly 15 to 300 mm from the end of the hammer handle, as shown in Figure (c). When hammering, the force should be appropriate and the drop point must be accurate. When the hammer strikes the work object in a plane, it should be parallel to the plane of the object to be hit, so as to avoid slipping and damaging the work object.
When using a hand hammer, the following points should be noted.
1. The hammer surface should be free of cracks, nicks and curls.
2, hammer, hammer surface and the palm of the operator's palm shall not have oil, otherwise using a hand hammer, prone to hand hammer from the risk of slipping out of the E, wounding injuries.
3. The wedge of the hammer handle should not be loose or fall off. Otherwise, the hammer may fly out of the wound and cause injury.
4. During the operation, it is forbidden to wear gloves to prevent the hand hammer slipping out of the hand.
5, the operator must choose the appropriate working position, do not allow the two opposite to beat the hammer, and pay attention to the surrounding environment.
6. It is forbidden to use the hammer as a horn, and it is forbidden to hammer the quenched workpiece.
If the user needs to use a hammer tool to repair the diesel generator set, refer to the above for proper use and use to improve the working efficiency of the repair. Jiangsu Xingguang Power Generation Equipment Co., Ltd. has first-class testing equipment, advanced production technology, professional manufacturing technology, perfect quality management system, and strong R&D technical strength.
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Shanghai Ito Power Co., Ltd. Main : Ito Gasoline Generator , Ito Diesel Generator , Ito Small Pump , Ito Digital Generator , Ito Electric Welding Machine
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The spinneret is one of the important parts of the spinning machine. Its function is to transform the viscous polymer melt or solution through the micropores into a trickle with a specific cross-section, which is solidified by a solidification medium or a solidification bath. And forming a thread. In the spinning process, the spinneret will be blocked by mechanical impurities, carbon fiber, gel, etc., the spinneret hole, when the spinneret hole is partially blocked, the spinning solution will overflow on the outer surface of the spinneret/plate, resulting in the original filament The size is uneven and there are problems such as fineness and hairiness. When the spinneret hole is completely blocked, it will greatly increase the rate of fiber breakage, which has a great impact on the fiber quality, so the spinneret must be cleaned regularly.
Many factories now use ultrasonic cleaning machines to clean the spinneret. Ultrasonic cleaning is a cleaning method that is widely used in the industry and has a good effect. Its working principle is that when the ultrasonic is propagated in the cleaning liquid, the tiny bubbles in the cleaning liquid are in the sound field. Vibration occurs under the action. When the sound pressure reaches a certain value, the bubble will increase rapidly, and then the shock wave can reach thousands of atmospheres when it closes and bursts. The shock wave reduces the adhesion between the stain and the cleaned workpiece and can destroy insoluble stains. And make them dispersed in the cleaning liquid, so as to achieve the purpose of cleaning. Although the bursting energy of the bubbles is very high, because the volume of each bubble is very small, there will be no mechanical damage and obvious temperature rise for the workpiece.
