刹车片对于车主来说非常重要，保证了行驶中的安全驾驶。一般来说，刹车片应具有4大基本要求：
The brake pad is very important for the car owner to ensure the safety of driving. Generally speaking, the brake pad should have four basic requirements:
1.搅拌机合适的摩擦系数。摩擦系数是摩擦材料的基本参数，决定基本的刹车片制动力矩。国标就严格要求制造商在包装上注明摩擦系数。摩擦系数适当，太高会造成制动过程中的车轮抱死、方向失控和烧片，太低则制动距离过长。
1. Suitable friction coefficient of mixer. Friction coefficient is the basic parameter of friction material, which determines the basic braking torque of brake pad. The national standard strictly requires the manufacturer to indicate the friction coefficient on the package. If the friction coefficient is appropriate, too high will cause wheel lock, direction out of control and burning during braking; if the friction coefficient is too low, the braking distance will be too long.
2.合理的小型搅拌机寿命。使用寿命是大家普遍关注的产品指标。通常刹车片能保证3万公里的使用寿命。像刹车片材料中采用的大颗粒石墨和黄铜还能够减少对刹车盘的磨损。
2. Reasonable service life of small mixer. The service life is the product index that everybody pays close attention to. Generally, the brake pads can guarantee a service life of 30000 km. For example, the large grain graphite and brass used in brake pad materials can also reduce the wear on the brake disc.
3.搅拌机刹车片在制动时会产生瞬时的高温，尤其在高速行驶或紧急制动时。在高温状态下，摩擦片的摩擦系数会下降，称为热衰退性。热衰退性的高低决定高温状态和紧急制动。
3. The brake pad of mixer will produce instantaneous high temperature when braking, especially when driving at high speed or emergency braking. At high temperature, the friction coefficient of friction plate will decrease, which is called thermal degradation. High temperature state and emergency braking are determined by the degree of thermal degradation.
小型混凝土搅拌机的维护：
Maintenance of small concrete mixer:
1.在ATF油中放入一张#600砂纸，浸泡约30分钟。小心地敲打阀体，使卡住的阀杆从腔孔中脱落。可能需要用小螺丝刀将其撬出。
Soak in oil for about 1 minute. Carefully tap the valve body to remove the stuck stem from the bore. It may be necessary to lever it out with a small screwdriver.
2.使用螺丝刀时，小心不要刮伤阀孔。检查单向阀杆上是否有摩擦痕迹。用浸有ATF油的#600砂纸打磨气门杆上的毛刺，然后用溶剂清洗气门杆并用压缩空气吹干。
2. When using the screw driver, be careful not to scratch the valve hole. Check for friction marks on the one-way stem. Grind the burrs on the valve stem with ? 600 sandpaper soaked in ATF oil, then clean the valve stem with solvent and dry it with compressed air.
3.卷起浸透ATF油的#600砂纸的一半，并将其插入卡住的气门杆的气门孔中。轻轻拧松砂纸并将其紧紧地贴在阀孔表面上，然后边推边拉边拧砂纸研磨阀孔。拔出600砂纸。
3. Roll up half of the ? 600 sandpaper soaked in ATF oil and insert it into the valve hole of the stuck valve stem. Gently loosen the sandpaper and stick it tightly on the surface of the valve hole, and then screw the sandpaper to grind the valve hole while pushing and pulling. Pull out 600 sandpaper.
4.用溶剂清洗整个阀体，然后用压缩空气吹干。在气门杆表面涂抹ATF油并将其滴入气门孔。阀杆应能以自身重量落入阀孔底部。否则，重复步骤4并重新测试。如果阀杆仍然卡住，则更换阀体。
4. Clean the whole valve body with solvent and then dry it with compressed air. Coat the surface of the valve stem with ATF oil and drip it into the valve bore. The valve stem shall be able to fall into the bottom of the valve bore with its own weight. Otherwise, repeat step 4 and retest. If the stem is still stuck, replace the valve body.
5.取出小型混凝土搅拌机的阀杆，用溶剂清洗阀杆和阀体。用压缩空气吹干所有零件，然后用ATF油作为润滑剂重新装配。
5. Take out the valve rod of small concrete mixer and clean the valve stem and valve body with solvent. Dry all parts with compressed air and reassemble with ATF oil as lubricant.
6.建议对混凝土储罐及进出口周围进行清洗，确保混凝土不结块。
6. It is suggested to clean the concrete storage tank and the surrounding of the inlet and outlet to ensure that the concrete does not agglomerate.
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2022-12-23
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