Cutting Knife Quality Assurance - Goodklife Tech
Views : 1921
Author : Mr. Jiang
Update time : 2022-09-23 12:04:04
The quality of the cutting knife is the crystallization of the combination of all the processing steps of the knife manufacturer, especially the ultra-high-precision tools, which cannot be achieved with any shortcomings. A high-quality cutting knife mainly depends on the MATERIAL, HEAT TREATMENT, PRECISION TOLERANCE and SURFACE TREATMENT.
Goodklife has always been committed to providing high-quality, ultra-high-precision cutting tools to customers around the world. In order to enhance mutual trust, for the first cooperation, we now provide free SGS testing services to invited customers to dispel all your doubts.
Material Quality Assurance
Precise Raw Material Selection
Raw material is the foundation of knife quality. Goodklife has the most complete range of blade raw materials in the world. We will recommend the most suitable blade material according to the customer's detailed cutting conditions to ensure that the blade is lastingly sharp without chipping. In order to meet the growing demand for high-strength steel shearing, Goodklife has also developed the national patented material G1, which greatly improves the shearing effect.
Table 1 is the recommended steel material for slitting disc knives from Goodklife.
Goodklife ESR Remelting Workshop
Surface Treatment Assurance
Goodklife has always been committed to providing high-quality, ultra-high-precision cutting tools to customers around the world. In order to enhance mutual trust, for the first cooperation, we now provide free SGS testing services to invited customers to dispel all your doubts.
Material Quality Assurance
Precise Raw Material Selection
Raw material is the foundation of knife quality. Goodklife has the most complete range of blade raw materials in the world. We will recommend the most suitable blade material according to the customer's detailed cutting conditions to ensure that the blade is lastingly sharp without chipping. In order to meet the growing demand for high-strength steel shearing, Goodklife has also developed the national patented material G1, which greatly improves the shearing effect.
Table 1 is the recommended steel material for slitting disc knives from Goodklife.
Table 1 Material Selection for Slitter Knife from Goodklife
At present, the vast majority of knives on the market are made of raw materials smelted by conventional techniques. In order to further improve the quality of the raw materials for the knives, Goodklife only selects raw materials produced by the ESR process. The ESR process is a further purification of raw materials after the conventional steelmaking process. Table 2 is the performance comparison table of ESR and conventional raw materials
Table 2 The Performance Comparison Table of ESR and Conventional Raw Materials
Compared with raw materials smelted by conventional methods, ESR raw materials can largely avoid the phenomenon of chipping, and can also significantly improve the service life of the blade.
Goodklife ESR Remelting Workshop
Heat Treatment Assurance
Goodklife's heat treatment workshop is fully equipped with various heating, annealing, quenching and tempering equipment, and is equipped with a number of experienced professional senior engineers. After years of experience summarization, the company's unique heat treatment process has been formed. Blades with a thickness of less than 100 mm can be fully hardened into the core, which can ensure that the performance of the blade is the same until it is ground to the min. size. Not only the safety factor of the blade is high, but also the production efficiency can be significantly improved and the cutting cost can be reduced.
Goodklife Heat Treatment Workshop
Goodklife Heat Treatment Workshop
Precision Tolerance Assurance
Sufficiently high flatness and parallelism are necessary conditions to ensure that the shear clearance between the upper and lower slitter blades of the slitting machine is always consistent during dynamic operation. Correct clearance is at the heart of ensuring precision cutting. If the surfaces of circular knives are not flat, or the two sides of the blade are not parallel, the gap between the upper and lower blades is always changing. In addition, the reaction force generated by the extrusion of the strip during slitting also causes the gap to change continuously. This will make it impossible to get burr-free strips.
The thickness tolerance of the blade is mainly to ensure the cutting accuracy of the width of the metal strip and prevent the cumulative error in the knife assembly. If a blade with a thickness tolerance of 1~2 μm or even 0.5 μm cannot be provided, the cumulative error when multiple shearing knives are assembled is unavoidable. Refer to Table 3 for the thickness tolerance that the blade should have when precision slitting.
The thickness tolerance of the blade is mainly to ensure the cutting accuracy of the width of the metal strip and prevent the cumulative error in the knife assembly. If a blade with a thickness tolerance of 1~2 μm or even 0.5 μm cannot be provided, the cumulative error when multiple shearing knives are assembled is unavoidable. Refer to Table 3 for the thickness tolerance that the blade should have when precision slitting.
Table 3 Goodklife Circular Knife Tolerance
Goodklife ultra-high precision slitting knives are more like works of art. The company currently has a number of ultra-fine grinding machines and lapping machines. Every employee in the finishing workshop is deeply rooted in the pursuit of high precision, and strictly abides by the operating system to ensure that every slitting tool is qualified.
Goodklife Finishing Workshop
Surface Treatment Assurance
A good surface roughness of the blade surface can improve the rigidity of the entire shearing system, increase the sharpness of the blade, reduce micro cracks on the blade and prolong the life of the blade. Different machining processes can result in different surface finishes. For high-precision non-ferrous metal processing, it is generally necessary to choose 0.05 - 0.1 μm. For slitting other thin coils, a surface roughness of 0.1 - 0.2 μm can be chosen.
Surface Quality of Slitter Blades with Different Processing from Goodklife
Goodklife supports you to choose right surface roughness for slitting tools:
