One, tile is not formed
1. The material is too dry: Do not allow the material to fill the mold cavity under pressure and proper humidity adjustment is required.
2. Less feeding: If the cylinder is fed, it may be stuck on the wall of the cylinder. Need to clear the wall.
3. Under the bias: cause more material on one side, less material on one side. Adjust the material feeder.
4. The ratio is wrong: the proportion of sand in the raw material is so large that the tile cannot be compacted.
5. The filter cloth is too tight: When replacing the filter cloth, remember to tie it with the lower mold and loosen it properly.
6. Oil pressure is not enough: check whether the pressure of the main press reaches 8 ~ 15mpa.
two. Tiles have cracks
1. No release agent was used.
2. The release agent sprayed too little. The injection pressure can be adjusted up slightly.
3. The center of the wator plate is biased.
4. Wafer plate and tile gap is too large, generally should be 1 ~ 5mm. Too large a gap will cause the tile to break, and the gap will be a bad roof.
5. The Valto Board is lifting too fast or shaking. Adjust the corresponding gas flow valve.
6. Too much sand was added to the ingredients, causing the tiles to have insufficient tackiness, and the tiles were cracked when they fell.
three. Tiles partially softened. The filter layout part is stuck and the bottom hole of the lower mold is blocked and cleaned.
1. The tile system has no pressure and the pump is reversed: the wiring is wrong and the steering is adjusted.
2. Insufficient power of the tile machine: motor failure or low voltage, test power supply or repair motor.
3. Pump temperature too high: oil viscosity is too low, pump damage, insufficient cooling, or interruption. Replace or repair the oil pump to improve the cooling system. Use a good viscosity hydraulic oil.
4. Pump speed too low: Coupling or motor faulty, excluded
5. The tile maker is misaligned or the components are damaged: the pressure is adjusted incorrectly, the overflow valve is damaged, the cylinder seal leaks, the pressure is adjusted to the correct pressure, the overflow valve is replaced, and the seal or cylinder is replaced.
The above is a colorful tile machine. The faults and processing methods in the tile manufacturing equipment are expected to bring you some help. How to adjust the clearance between the tile machine and the bearing The measurement and adjustment of the clearance of the bearing pad The clearance of the bearing pad determines the thickness of the oil wedge. And affect the spindle's running accuracy. If the bearing clearance is too large, the vibration of the equipment will be caused and the service life of the equipment will be reduced. If the clearance of the bearing bush is too small, it will cause burning of tiles. Therefore, a reasonable adjustment of the gap between the tile and the bearing is an important issue. It must be brought up to the specified standard. (1) Adjustment and measurement of the top gap c of the tile roof. The height of the top gap can be increased or decreased. The thickness of the sheet is adjusted. The smaller the number of gaskets, the better the compaction of the bearing pads and the smoother the operation of the equipment. Therefore, the number of gaskets should be as low as possible to ensure that there are no burning tiles. The measurement of the top clearance is usually measured by the lead method.
(2) Adjusting and measuring the side gap of the tile machine The side gap between the pad and the journal is usually measured by a feeler. When measuring, the length of the feeler insertion into the gap should not be less than 1/4 of the shaft diameter. The side clearance between the tile bearing and the bearing joint surface should be uniform.
(3) Measurement of the axial clearance of the tile tile machine Axial clearance of the pad is generally measured with a feeler gauge.
After many years of practice, we believe that the top gap between the tile machine and the bearing should be 0.15% to 0.2% of the shaft diameter, the backlash should be 60% to 100% of the headspace, and the axial clearance should be 1 to 3mm.
Selection, Use and Maintenance of Tiled Hydraulic Hydraulic Oil Pump
1. What is the working pressure required for the system? Generic unit: PSI or bar.
2. The flow or speed requirements.
3. Select the most suitable power. Such as manual, electric, pneumatic or gasoline engine drive.
4. The requirements for capacity.
5. Consider the working environment, the working temperature of the oil pump, the cooling conditions and whether explosion protection is needed.
6. Are multiple cylinders used during operation? The cylinder volume and pump flow must be carefully considered.
No. 1 and No. 30 mechanical oil and hydraulic oil No. 30. When the ambient temperature is below 25°C, YH-10 aviation hydraulic oil is recommended; domestic α and CB-4 gear pumps and YB vane pumps are recommended to use No. 20 machinery. oil.
Keep the oil clean and maintain a certain oil filter accuracy
1. The axial clearance of the axial piston pump can be automatically compensated. The clearance is small and the oil film is thin. The oil filter oil has the highest precision.
2. The precision of the oil filter of the tilt disc axial piston pump is 10~15μm.
3, solid impurities cause wear, capacity and efficiency decreased, leading to through-hole, variable mechanism, parts and other plugging and jamming.
4. Once the oil is contaminated, it should be replaced completely and flushed with clean oil.
2, the working oil temperature is appropriate
1, the general working oil temperature should be 10 ~ 50 °C, the maximum should be less than 65 °C, local short time should be less than 90 °C.
2. Start at light load or no-load at low temperature, and resume normal operation after the oil temperature is normal. Generally, when the temperature is lower than 10°C, it should be loaded for more than 20 minutes to load: if the temperature is below 0°C or above 35°C, it should be heated or cooled; in the region or during winter start, the oil temperature should be raised above 15°C. Can be loaded; it is not allowed to start below -15°C.
3. When working, it is forbidden to add cold oil into the heating element, or to fill the hot oil into the cold element, so as to avoid too large temperature difference, and death due to uneven expansion or contraction. In winter or in cold areas, if electric heaters are used to heat the oil in the tank, since the pump and motor are still cold and easy to get stuck, special attention must be paid when using them.
3, ensure normal working conditions
1. Normal inhalation conditions Although the hydraulic pumps are all positive displacement pumps, they have a certain self-priming capacity. However, mercury has many internal friction sealing surfaces and the self-priming capacity is limited. In particular, the internal flow path of the pump is complex, and the general suction height (oil level To the pump center) is low, about 12 ~ 50cm, and some mercury does not allow self-absorption in the clear text, such as ZB227 type, so it should consider the inhalation conditions to minimize inhalation resistance:
2. The suction pipe must not be equipped with a filter, otherwise negative suction or auxiliary pumps may be used to supply oil;
3, it is best to make the tank above the pump inlet, or use the auxiliary pump for oil. Such as: ZB type pump (except ZB227 type) in the rated speed (1500r/min) below the transfer, allow self-priming, but this will lead to a decline in capacity and number rate of 5%, and will inevitably affect the service life, manufacturers generally This method of use is not recommended; most manufacturers recommend the use of auxiliary pumps for oil supply, and the pressure at the time of residence is approximately 0.7 MPa.
CY type oil mercury is allowed to self-prime when operating at rated speed. The suction height is less than or equal to 500mm. It operates at the maximum rotation speed. When the suction pipe is small, the flow column height is allowed. The suction height is 300~500 mm when the pipe resistance. When larger, the pump must use auxiliary mercury to supply oil, the pressure of oil supply is ≤ 0.4Mpa
4. The problem of assuring the normal state of system oil hydraulic oil has historically been regarded as the culprit in the failure of the hydraulic system. Due to space constraints, we will not go into details here. We will only explain some typical problems.
5, the oil viscosity should meet the requirements such as ZB type oil pump is recommended to use the viscosity of the hydraulic oil with a small change in oil temperature, the viscosity range of 20 ~ 100cst, the ambient temperature above 15 °C, it is recommended to use a thick 40
1. The material is too dry: Do not allow the material to fill the mold cavity under pressure and proper humidity adjustment is required.
2. Less feeding: If the cylinder is fed, it may be stuck on the wall of the cylinder. Need to clear the wall.
3. Under the bias: cause more material on one side, less material on one side. Adjust the material feeder.
4. The ratio is wrong: the proportion of sand in the raw material is so large that the tile cannot be compacted.
5. The filter cloth is too tight: When replacing the filter cloth, remember to tie it with the lower mold and loosen it properly.
6. Oil pressure is not enough: check whether the pressure of the main press reaches 8 ~ 15mpa.
two. Tiles have cracks
1. No release agent was used.
2. The release agent sprayed too little. The injection pressure can be adjusted up slightly.
3. The center of the wator plate is biased.
4. Wafer plate and tile gap is too large, generally should be 1 ~ 5mm. Too large a gap will cause the tile to break, and the gap will be a bad roof.
5. The Valto Board is lifting too fast or shaking. Adjust the corresponding gas flow valve.
6. Too much sand was added to the ingredients, causing the tiles to have insufficient tackiness, and the tiles were cracked when they fell.
three. Tiles partially softened. The filter layout part is stuck and the bottom hole of the lower mold is blocked and cleaned.
1. The tile system has no pressure and the pump is reversed: the wiring is wrong and the steering is adjusted.
2. Insufficient power of the tile machine: motor failure or low voltage, test power supply or repair motor.
3. Pump temperature too high: oil viscosity is too low, pump damage, insufficient cooling, or interruption. Replace or repair the oil pump to improve the cooling system. Use a good viscosity hydraulic oil.
4. Pump speed too low: Coupling or motor faulty, excluded
5. The tile maker is misaligned or the components are damaged: the pressure is adjusted incorrectly, the overflow valve is damaged, the cylinder seal leaks, the pressure is adjusted to the correct pressure, the overflow valve is replaced, and the seal or cylinder is replaced.
The above is a colorful tile machine. The faults and processing methods in the tile manufacturing equipment are expected to bring you some help. How to adjust the clearance between the tile machine and the bearing The measurement and adjustment of the clearance of the bearing pad The clearance of the bearing pad determines the thickness of the oil wedge. And affect the spindle's running accuracy. If the bearing clearance is too large, the vibration of the equipment will be caused and the service life of the equipment will be reduced. If the clearance of the bearing bush is too small, it will cause burning of tiles. Therefore, a reasonable adjustment of the gap between the tile and the bearing is an important issue. It must be brought up to the specified standard. (1) Adjustment and measurement of the top gap c of the tile roof. The height of the top gap can be increased or decreased. The thickness of the sheet is adjusted. The smaller the number of gaskets, the better the compaction of the bearing pads and the smoother the operation of the equipment. Therefore, the number of gaskets should be as low as possible to ensure that there are no burning tiles. The measurement of the top clearance is usually measured by the lead method.
(2) Adjusting and measuring the side gap of the tile machine The side gap between the pad and the journal is usually measured by a feeler. When measuring, the length of the feeler insertion into the gap should not be less than 1/4 of the shaft diameter. The side clearance between the tile bearing and the bearing joint surface should be uniform.
(3) Measurement of the axial clearance of the tile tile machine Axial clearance of the pad is generally measured with a feeler gauge.
After many years of practice, we believe that the top gap between the tile machine and the bearing should be 0.15% to 0.2% of the shaft diameter, the backlash should be 60% to 100% of the headspace, and the axial clearance should be 1 to 3mm.
Selection, Use and Maintenance of Tiled Hydraulic Hydraulic Oil Pump
1. What is the working pressure required for the system? Generic unit: PSI or bar.
2. The flow or speed requirements.
3. Select the most suitable power. Such as manual, electric, pneumatic or gasoline engine drive.
4. The requirements for capacity.
5. Consider the working environment, the working temperature of the oil pump, the cooling conditions and whether explosion protection is needed.
6. Are multiple cylinders used during operation? The cylinder volume and pump flow must be carefully considered.
No. 1 and No. 30 mechanical oil and hydraulic oil No. 30. When the ambient temperature is below 25°C, YH-10 aviation hydraulic oil is recommended; domestic α and CB-4 gear pumps and YB vane pumps are recommended to use No. 20 machinery. oil.
Keep the oil clean and maintain a certain oil filter accuracy
1. The axial clearance of the axial piston pump can be automatically compensated. The clearance is small and the oil film is thin. The oil filter oil has the highest precision.
2. The precision of the oil filter of the tilt disc axial piston pump is 10~15μm.
3, solid impurities cause wear, capacity and efficiency decreased, leading to through-hole, variable mechanism, parts and other plugging and jamming.
4. Once the oil is contaminated, it should be replaced completely and flushed with clean oil.
2, the working oil temperature is appropriate
1, the general working oil temperature should be 10 ~ 50 °C, the maximum should be less than 65 °C, local short time should be less than 90 °C.
2. Start at light load or no-load at low temperature, and resume normal operation after the oil temperature is normal. Generally, when the temperature is lower than 10°C, it should be loaded for more than 20 minutes to load: if the temperature is below 0°C or above 35°C, it should be heated or cooled; in the region or during winter start, the oil temperature should be raised above 15°C. Can be loaded; it is not allowed to start below -15°C.
3. When working, it is forbidden to add cold oil into the heating element, or to fill the hot oil into the cold element, so as to avoid too large temperature difference, and death due to uneven expansion or contraction. In winter or in cold areas, if electric heaters are used to heat the oil in the tank, since the pump and motor are still cold and easy to get stuck, special attention must be paid when using them.
3, ensure normal working conditions
1. Normal inhalation conditions Although the hydraulic pumps are all positive displacement pumps, they have a certain self-priming capacity. However, mercury has many internal friction sealing surfaces and the self-priming capacity is limited. In particular, the internal flow path of the pump is complex, and the general suction height (oil level To the pump center) is low, about 12 ~ 50cm, and some mercury does not allow self-absorption in the clear text, such as ZB227 type, so it should consider the inhalation conditions to minimize inhalation resistance:
2. The suction pipe must not be equipped with a filter, otherwise negative suction or auxiliary pumps may be used to supply oil;
3, it is best to make the tank above the pump inlet, or use the auxiliary pump for oil. Such as: ZB type pump (except ZB227 type) in the rated speed (1500r/min) below the transfer, allow self-priming, but this will lead to a decline in capacity and number rate of 5%, and will inevitably affect the service life, manufacturers generally This method of use is not recommended; most manufacturers recommend the use of auxiliary pumps for oil supply, and the pressure at the time of residence is approximately 0.7 MPa.
CY type oil mercury is allowed to self-prime when operating at rated speed. The suction height is less than or equal to 500mm. It operates at the maximum rotation speed. When the suction pipe is small, the flow column height is allowed. The suction height is 300~500 mm when the pipe resistance. When larger, the pump must use auxiliary mercury to supply oil, the pressure of oil supply is ≤ 0.4Mpa
4. The problem of assuring the normal state of system oil hydraulic oil has historically been regarded as the culprit in the failure of the hydraulic system. Due to space constraints, we will not go into details here. We will only explain some typical problems.
5, the oil viscosity should meet the requirements such as ZB type oil pump is recommended to use the viscosity of the hydraulic oil with a small change in oil temperature, the viscosity range of 20 ~ 100cst, the ambient temperature above 15 °C, it is recommended to use a thick 40
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