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学习如何保养您的刀具

Steel Properties of Common Cutters

Steel makers follow a precise recipe to ensure that each time they make a particular alloy it has correct properties. The recipes are known as Specifications, and they specify the amount of each alloy. Each alloy recipe or type is named according to a number convention. 

Sandvik 12C27: Stainless steel made in Sweden. Known as a premium steel. 

1095 Steel: 

Easy to sharpen, plain carbon steel used in knife making. 

D2 Steel: A high-carbon, high-chrome tool steel often used for blanking dies. This steel has excellent edge holding ability but is very difficult to process. 

S30V: Developed primarily for the cutlery industry by Crucible Steel, S30V contains noticeably higher amounts of Carbon and Vanadium than does BG-42. This increase in Carbon and Vanadium provides superior edge-holding and abrasion resistance. S30V is the best blade steel available today. 

BG-42: A proprietary alloy of Timken Latrobe Steel, BG-42 is a high-performance, bearing-grade martensitic stainless steel used in the aerospace industry. Because of its high strength and ability to reach high Rockwell hardness (Rc 61-62), BG-42 is well suited for blades that are subjected to extreme use. 

154CM: 154CM is a very high carbon stainless steel with the addition of Molybdenum. Because 154CM provides better edge retention than standard cutlery (stainless) steels, it is a good choice for blades that require heavier cutting applications. 

420HC: A higher carbon version of standard Type 420 martensitic stainless steel. The Carbon content, combined with the high Chromium content, provides good abrasion resistance and edge-holding. 

420J2: A lower carbon content, general-purpose stainless steel. 420J2 has fair hardness and corrosion resistance and high ease of resharpening. 420J2 is suited for knife blades with light to medium use and routine applications. 

17-7 PH: A Chromium/Nickel/Aluminum, precipitation-hardening, stainless steel. The alloy is used for high-strength applications requiring resistance to salt-water corrosion. 17-7PH offers a good compromise between Martensitic stainless steels and Austeniticstainless steels. 

N690: A Martensitic stainless steels, can reach HRC 60 after twice heat treat. It contains 1.07%carbon, 17% chromium, 1.50% cobalt, 0.4% manganes,' 0.4% silico,' 1.1%molybdenum and 0.1%vanadium. 

AUS stainless steel: AUS comes in several grades. AUS-4 is 0.40% to 0.45% carbon, but AUS-10 is 0.95% to 1.10% carbon. The level of chromium is 13% to 14.5%, less than the 440 varieties but still enough to ensure a stainless blade. Generally speaking, AUS-10 knives will be more expensive than the other three AUS varieties. 

440 stainless steel: The most common type of stainless knife steel is 440. It comes in three varieties, which have different amounts of carbon and other metals they contain. On the low end is 440A, which has 0.65% to 0.75% carbon. On the high end is 440C, which has 0.95% to 1.20% carbon. All 440 steels are 16% to 18% chromium, which contributes to their stainless quality.



刀具打磨保养

任何时候都要保证清洁和润滑 要创造一种具较好切割能力又不生锈的钢材是一种特殊的挑战。尽管大多数知名刀具厂商均采用优秀不锈钢,但如果没有好的保养,这些刀仍然会生锈,这不是工厂的质量问题。通常钢材中含碳量高会增加切割能力,即锋利性,但同时会降低抗锈性。当在盐水或潮湿的环境下使用刀具时,一定要注意防锈:如有锈斑出现一定要注意及时用金属防锈剂擦拭;如在海水或盐水中用过要及时在清水中冲洗干净,将刀具完全甩干涂上润滑油或硅油,越全面越好。为了 保证安全使用,要注意摩擦部分,最好是用牙签清理污垢和用热水溶掉不易清理的污渍,然后在滴几滴润滑油,就可以保证轻松安全开关。 


永远保持刀刃锋利 刀越钝则越不安全,越懒磨刀,刀就越难磨。锋利的刀刃,可以顺利的切割,保持锋利并不难,根据你的刀具所要求的磨刀角度,采用质量较好的磨刀器打磨或送回经销商处免费打磨。比较好的磨刀器品牌有LANSKY、蜘蛛、钻石、单价较高。你也可以选用数十元的便于携式卡式磨刀器。通常磨刀角度在15-25之间,一些高档刀具均有磨刀角度说明。请勿从背面打磨带齿刀刃,最好用齿刃磨刀器。打磨时要两面同样次数,保持同样角度。


钢材的成分及分类

(1) 碳素钢:a.低碳钢(C≤0.25%);b.中碳钢(C≤0.25~0.60%);c.高碳钢(C≥0.60%).(2) 合金钢:a.低合金钢(合金元素总含量≤5%);b.中合金钢(合金元素总含量>5~10%);c.高合金钢(合金元素总含量>10%)。


专业名词的解释

专业素质是指从事社会职业活动所必备的专门知识、技能.主要包括三个方面:扎实的理论基础、熟练的专业技能、全面的业务能力。


手柄材料

按照手柄外型还可分为:手柄、直手柄、转动手柄、曲面转动手柄、小转动手柄、钢质镀铬手柄、七子手柄(可调位紧定手柄)、可折手柄、长手柄套、手柄套、椭圆手柄套、手柄球、手柄杆、手柄座、圆盘手柄座、锁紧手柄座、定位手柄座、三球手柄、定位手柄、球头手柄、斜锥柱手柄等


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