[China Aluminum] In the production of aluminum products, measuring tools are essential instruments for quality control. These tools act as the "eyes" of inspectors, and if they are not properly maintained or are damaged, they can lead to inaccurate measurements, which ultimately compromise product quality. Therefore, regular maintenance and proper handling of measuring instruments are crucial. Below are detailed guidelines for maintaining commonly used aluminum inspection tools:
1. Avoid using abrasive materials like whetstones or emery cloth on the measuring surfaces or markings of the gauge. Only authorized personnel should handle, repair, or disassemble measuring tools to prevent damage or inaccuracies.
2. Store measuring instruments in a clean, dry place, away from vibrations, corrosive gases, extreme temperatures, and magnetic fields. Keep them in their protective cases and avoid mixing them with other tools or debris.
3. Never touch the measuring surface directly with your hands, as sweat and dirt can cause rust or contamination. Always use gloves when handling these tools, and keep them separate from other metal objects to prevent scratches or damage.
4. After use, clean the tool thoroughly, remove any residue or chips, and loosen the locking mechanism. If the tool will not be used for more than a month, apply a thin layer of anti-rust oil. Always store it in a protective case and ensure that only trained professionals handle it. Regular calibration by certified authorities is also required.
5. Do not use the tip of the caliper’s jaws as a scriber or compass. Avoid twisting the jaws or using the gauge as a clamp, as this can damage the tool and affect its accuracy.
6. Before measuring, always remove any burrs or rough edges from the workpiece. These can cause wear on the measuring tool and lead to incorrect readings.
**Maintenance Tips for Common Aluminum Measuring Tools:**
1. **Dial Gauges and Dial Indicators**
1.1 Clean the dial gauge and rod before use.
1.2 Compress the probe slightly to ensure the pointer moves at least one-sixth of a full rotation.
1.3 Check the stability of the reading by moving the rod quickly and slowly. If the reading changes by more than 0.3 divisions, check for loose parts or bracket issues. If no issues are found, the gauge may need professional calibration.
2. **Aluminum Profile Micrometer**
2.1 Always check the zero point before use. If it's off, send it to the calibration room for adjustment.
2.2 Clean the object with gasoline or a soft cloth to remove dust and oil, which can affect precision.
2.3 Apply gentle pressure when measuring, ensuring the measuring tip makes light contact with the surface.
3. **Lever Dial Indicator**
3.1 Keep the lever and measuring head clean and free of grease.
3.2 When installed, toggle the measuring head to check for stable readings. Align the dial to “zero†before taking measurements.
3.3 Ensure the measuring head axis is perpendicular to the measured surface. If not, adjust the reading using the cosine correction formula (cos α).
4. **Aluminum Vernier Caliper**
4.1 Wipe the measuring and sliding surfaces before use.
4.2 Move the frame to the object and check for zero alignment.
4.3 Use light pressure when measuring—just enough to allow the caliper to slide smoothly.
4.4 Read the measurement with your eyes perpendicular to the scale to avoid parallax errors.
5. **Inner Diameter Dial Gauge for Aluminum Profiles**
This precision instrument is used to measure internal diameters ranging from 6mm to 450mm, as well as roundness and cylindricity deviations. It plays a vital role in industrial quality control and must be handled with care to ensure accurate results.
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