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How to Choose Knife?
- Nov 24, 2017 -

Category of tools:

Household cleaver according to the function is divided into slicing knives, chop knives, chopping two-purpose knives, fruit knives, etc. There are other such as frozen meat knives, bread knives, multi-function knife and the like. In accordance with the processing technology classification stamping, red hot forging, etc .; divided by material carbon steel, stainless steel, three steel (folder steel), multi-layer steel, ceramic (zirconia) and so on.

First, slicing knife: for vegetables, soft meat slices, frozen meat and hard shell fruits and vegetables should not be used;

Second, cut the knife: used for cutting bones and hard ingredients;

Third, the chopper knife: chopping can be cut, but when slicing relatively no special slicing knife easy to use (materials, technology under the same circumstances), the other is not suitable for cutting the big bone, can only cut, chickens, ducks, fish, etc. Small bones. Can be used to chop meat stuffing;

Fourth, fruits and vegetables knife: for cutting fruits and vegetables;

Five other special tools;

Tool selection

First, sharp edges

First of all from the user's point of view the first requirement for the chopper is certainly sharp (fast), the best long-lasting sharpness. Then we take a look at the sharpness of the kitchen knife is determined by those attributes it?


Is usually the manufacture of steel blade parts, different materials determine the finished product after the tool has a different hardness, then it can be understood as the higher the hardness of the higher the degree of sharp it? It should be said is not entirely correct, because the chopper's "fast" also depends on the hardness of the blade edge and toughness and so on. High hardness is indeed sharp, but the more the higher the hardness of the more brittle, which requires the blade edge to consider the toughness, only the two reached a reasonable balance point, in order to reflect the quality of a knife. Common material hardness contrast: 3cr13 <4Cr13 <5Cr15 <8Cr15 <9Cr15≈ carbon steel <12Cr15.

2. The way the blade is divided into machine blade and manual blade

Therefore, in terms of sharpness, the harder steel, the smaller the degree of edge, the edge of the more gentle curvature of the non-linear straight down chopper will be more "faster", and better use, especially slicing knife. Therefore, the same material, the knife must be more sharp than the cutting tool, this is determined by the edge of the degree.

Second, the use of comfortable. Handle design to be humane, comfortable grip.

In the knife handle the main material is wood, plastic, steel handle, etc., each have their own advantages. Generally speaking, the stamping knife handles are better and more delicate. The traditional forging tools are mostly wooden handles (mostly round handles). Now some traditional cutter manufacturers have started selling knives with other handles.

Third, the use of safety, handle must have non-slip design, will not get rid of hurt users.

Needless to say this point, at least the requirements,

Another talk about the difference between stamping and red hot forging process:

Stamping: simply put a large piece of steel (for example, 2 mm in thickness), punching a complete blade directly through the punch abrasive, and then follow the blade, surface treatment, heat treatment, the shank, etc. After the process made into finished kitchen knives. The advantages of this process are high efficiency and thus cost advantages, high degree of mechanization, better surface finish, high standardization and more detail.

Traditional forging: the biggest difference with the stamping process is the embryo forming stage. Forging is the embryo (usually block) burned to red hot state, by repeated thrashing (now more machine hammer), to create a preliminary embryo, and then manually edging (frustration), surface treatment, heat treatment, etc. , Finished knife usually knife back thick, Tangkou thin, cross-section wedge type. Compared to stamping knives, knives chopper steel is more dense, blade stress distribution more uniform, sharp retention better. Drawback is the difficulty of higher yield and higher cost, the technical details are relatively poor.

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