Grass Trimmer Cutting Blade Manufacturers

During the blade processing, how do lawn mower cutting blade manufacturers control dimensional accuracy and surface quality to ensure the long-term stability and cutting effect of the blade?

1. Control of dimensional accuracy
High-precision processing equipment:
Manufacturers should use high-precision CNC machine tools (CNC) and other processing equipment, which can perform precise processing according to preset programs to ensure the dimensional accuracy of the blade.
During the processing process, parameters such as cutting speed, feed rate and cutting depth are strictly controlled to ensure processing accuracy.
Strict inspection process:
During and after processing, the blade is strictly inspected for dimensions, including length, width, thickness, and the position and size of the mounting holes.
Use high-precision measuring tools such as coordinate measuring machines (CMMs), projectors, etc. for precise measurement to ensure that the size of the blade meets the design requirements.
Quality control system:
Establish a sound quality control system to monitor the entire processing process to ensure that each link meets quality requirements.
Implement systems such as first-piece inspection, process inspection and finished product inspection to detect and correct problems in a timely manner.
2. Control of surface quality
Choose the right material:
The choice of blade material has an important impact on its surface quality. Manufacturers should choose materials with good wear resistance, corrosion resistance and fatigue resistance, such as stainless steel, alloy steel, etc.
According to different use environments and requirements, choose the appropriate material grade to ensure the long-term stability and cutting effect of the blade.
High-quality grinding process:
Use high-quality grinding process to grind the blade to improve the accuracy and finish of the blade surface.
Select appropriate grinding wheels, grinding fluids and grinding parameters to ensure stability and consistency during the grinding process.
Strict surface quality inspection of the ground blade, such as surface roughness, flatness, parallelism, etc., to ensure that the design requirements are met.
Heat treatment and surface treatment:
Heat treatment of the blade, such as quenching and tempering, to improve its hardness and wear resistance.
Perform necessary surface treatment, such as sandblasting and polishing, to improve the surface quality of the blade, improve its corrosion resistance and aesthetics.
Cleaning and protection:
Keep the blade clean during processing and storage to avoid contamination and damage.
Perform necessary protective treatment on the finished blade, such as applying anti-rust oil, etc., to prevent it from rusting and corrosion.

During the surface treatment process, how can the lawn mower cutting blade factory ensure that the coating is evenly and firmly attached to the blade to extend its service life?

1. Blade pretreatment
Cleaning: First, the blade needs to be thoroughly cleaned to remove oil, oxides and other impurities on the surface. This can be achieved by solvent cleaning, ultrasonic cleaning or sandblasting to ensure that the blade surface is clean and free of dirt.
Rust removal: For rusted blades, rust removal is required to ensure that the coating can be firmly attached to the substrate.
Roughening: In order to improve the adhesion of the coating, the blade surface usually needs to be roughened, such as sandblasting, electrochemical roughening, etc., to increase the contact area and mechanical bite force between the coating and the substrate.
2. Coating selection
Choose the appropriate coating material: According to the use environment and performance requirements of the blade, select the appropriate coating material. For example, wear-resistant coating, corrosion-resistant coating or anti-friction coating, etc., to improve the wear resistance, corrosion resistance and service life of the blade.
Consider the compatibility of the coating with the substrate: Ensure that the selected coating has good compatibility with the blade substrate to avoid peeling or cracking during the coating process.
3. Coating process control
Precise control of coating thickness: Ensure uniform coating thickness through precise process control. Too thick coating may cause excessive internal stress and cracking of the coating, while too thin coating may not provide adequate protection.
Uniform spraying: Use advanced spraying equipment and technology to ensure that the coating is evenly distributed on the blade surface. This includes controlling parameters such as spraying speed, spraying distance and spraying angle to obtain the best coating effect.
Curing treatment: After the coating is sprayed, curing treatment is required to make the coating firmly bonded to the substrate. The curing temperature and time should be precisely controlled according to the characteristics of the coating material to ensure that the coating achieves the best physical and chemical properties.
4. Quality inspection
Coating thickness inspection: Use professional measuring tools to inspect the coating thickness to ensure that the coating thickness meets the design requirements.
Adhesion test: Test the adhesion between the coating and the substrate through methods such as cross-cutting test and pull-out test to ensure that the coating is firm and reliable.
Performance test: Perform performance tests such as wear resistance and corrosion resistance on the coated blade to verify the protective effect and service life of the coating.
5. Subsequent maintenance and care
Regular cleaning: During use, regularly clean the dirt and impurities on the surface of the blade to keep the coating in good condition.
Avoid scratching: Avoid direct contact or scratching between the blade and hard objects to prevent damage to the coating.
Proper storage: Store the blade in a dry, ventilated, dust-free environment to avoid moisture and corrosion.