1. Operational skills
Checking whether the centering is correct is an important guarantee for reaming the valve seat. The method of inspection is to gently rotate the handle joint after installation to see if the guide rod is flexible and free to rotate in the valve guide. Otherwise, reinstall it as described in the installation adjustment. To process the seat of different materials, the corresponding adjustment should be adjusted from the two aspects of the feed amount and the rotation speed. For example, the material is soft, the feed amount can be slightly increased, and the rotation speed can be faster. If the material is very hard, the feed amount is small. Be sure to be small and rotate slowly.
2. The problem of the mouth:
In the case of the hinge valve seat, some of them are always hinged first. This is normal and correct, because the valve seat is not the same as the conduit hole, and the upper or lower port is not a perfect circle. Considering the design of the tool, the gap between the guide rod and the conduit hole is not large, and the guide rod is not bent. If the centering is correct, the sealing strip concentric with the catheter will be processed, so the user can process it with confidence, if it is true after processing The appearance of the partial mouth, can be replaced by a new door, exclude the valve factor, and then check: 1, the guide bar is bent; 2, the initial positioning of the seat is correct; 3, the gap with the catheter is too large; Whether all the fixing bolts are tightened, the above problems are solved, and the problem of the partial mouth will be solved.
3. The blade frame touches the wall:
The wall of the combustion chamber of a very special cylinder head is close to the seat ring, and the wall of the combustion chamber is high. At this time, the blade frame will hit the wall of the combustion chamber, and the knife will not contact the seat ring. The portion of the cartridge that touches the wall of the combustion chamber.
4. The relationship between the thickness of the guide rod and the conduit hole:
The guide rod thickness of this tool is matched with the standard conduit hole. The problem often encountered is that after the cylinder head is replaced with a new one, the guide rod cannot be inserted into the duct hole. The reason is that the inner diameter of the new tube is deformed and reduced during the press-fitting process. The solution is to use a suitable internal reamer to ream. In the deformed part, the deformed part is the main cause of irregular wear between the valve and the duct, so it is very important to rectify the deformed part, and the reamed duct can be ideally matched with the tool guide. There are stick reamers on the market, and all models are available.
5. Feeding device:
The inlet disc nut and the hollow bolt on the positioning device are used for a long time. After the wear and sway, the bolt of the fixing nut can be twisted upward, and the nut moves upward in the outer oblique sleeve, and the nut hole is reduced, and the utility can be continued.
6. Hinge seat ring quality:
This is what users care most about and is a measure of whether a tool is advanced. There are many reasons for leakage: the gap between the guide rod and the conduit is too large, the centering is not correct, the cutting surface is defective, the material of the seat ring is uneven or the fixing bolts are not tightened when reaming. Therefore, it is recommended that after you buy the tool, you should use kerosene or vacuum to test it in the early stage, such as leaking, find out the cause of the problem, accumulate experience, and insert a new valve (or polished valve) before testing. ) Strike hard several times to remove burrs that are invisible to the naked eye but can cause leakage.
7. Use of the blade:
The life of the blade is related to the number of repairs and the hardness of the race. For example, German cars (including domestic joint venture Volkswagen series cars) American cars and other parts of the car, the material of the seat ring is not hard, the blade can repair 600-800 seat ring mouth, only need to sharpen, such as cutting Beijing 212 during use. Known hard races such as Cherno, Volga, etc. After repairing 400-500 seat rings, they need to be sharpened and only ground. The blade has a thickness of 3 mm and can be ground to about 1 mm. The amount of sharpening is less than 0.1 mm each time, so it can be sharpened more than 10 times. The reaming process must not be reversed and the blade must be damaged.
TOF (Time of Flight) ranging sensor is a type of sensor that measures distance by calculating the time it takes for a light signal to travel from the sensor to the target object and back. It uses laser or infrared light to emit a signal and measures the time it takes for the signal to return to the sensor. By knowing the speed of light, the sensor can accurately calculate the distance between itself and the target object.
TOF ranging sensors are commonly used in various applications such as robotics, autonomous vehicles, industrial automation, and augmented reality. They provide accurate distance measurements and can be used for object detection, collision avoidance, gesture recognition, and mapping.
Compared to other distance measurement technologies like ultrasonic sensors or infrared proximity sensors, TOF ranging sensors offer several advantages. They provide higher accuracy, faster response times, and can work in various lighting conditions. They are also capable of measuring longer distances and can be used for both indoor and outdoor applications.
Overall, TOF ranging sensors are a versatile and reliable technology for measuring distances and are widely used in many industries for a range of applications.
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