1, Tool requirements and professional selection in bone splitting scenarios
(1) The core challenge of bone splitting homework
Splitting bones requires dealing with high-intensity impact forces and penetrating cartilage, ligaments, and hard bones. Ordinary cutting tools are prone to curling, chipping, and even breakage, so bone splitting knives need to have three major characteristics:
High hardness steel: The hardness needs to reach 55-60HRC to maintain the sharpness of the cutting edge;
Thick blade: disperses impact force by increasing mass, avoiding local stress concentration;
Curved blade line: guides the cutting direction and reduces the frictional resistance between the blade and the bone.
(2) Classification of Professional Bone Splitting Knife Types
Chinese style bone cutting knife
Design features: The thickness of the blade back reaches 5-8mm, the length of the blade is 25-35cm, and the cutting edge is single-sided at 15 ° -20 °.
Typical case: Zhang Xiaoquan's ZG-175 bone cutting knife adopts a 3.5mm thick back design, combined with a three-point ABS handle, which can easily cut pig ribs; The Deng Family Knife Chef's Bone Cutting Knife achieves continuous cutting of pig and sheep bones through a 5mm thick blade back and quenching process.
Application scenario: Chinese style kitchen for processing small and medium-sized bones such as whole chicken, pork ribs, and tube bones.
Axe shaped bone cutting knife
Design features: The blade head is widened in an axe shape, the weight of the blade is concentrated at the front end, and the cutting edge angle can be as low as 10 °.
Typical case: The Shibaizi axe shaped bone cutting knife adopts wet double-sided deep V-cutting technology, with a thickened blade back of 1cm, which can split open cow leg bones; The German Doubleman Pro series bone cutting axe achieves a balance between hardness and toughness through ice forging and quenching technology.
Application scenarios: Processing large livestock bones in slaughterhouses, or chopping frozen hard bones in households.
Japanese style cutting edge bun
Design features: Blade length of 18-24cm, blade back thickness of 4-6mm, widened front end design to enhance chopping stability.
Typical case: The Xun brand VG-10 steel blade knife can accurately divide fish bones and cartilage through a D-shaped handle and balanced weight; The green paper steel hand forged by Kanto knife craftsmen has a blade edge that is three times more durable than ordinary cutting tools.
Application scenario: Processing fine bones such as Sanwen fish head and eel bones in Japanese restaurants.
2, Tool requirements and professional selection in peeling scenarios
(1) The core challenge of skinning operation
Peeling should form micro scale cuts between the skin and flesh to avoid damaging the dermis or muscle tissue. Therefore, the peeling knife needs to meet the following requirements:
Ultra thin blade: The blade thickness should be controlled between 0.2-0.5mm to reduce cutting resistance;
Flexible control: The blade length matches the prey's body shape, and the handle conforms to ergonomics;
Corrosion resistance: It is necessary to have rust prevention ability when in contact with animal body fluids.
(2) Classification of Professional Peeling Knife Types
Water droplet peeling knife
Design features: The blade tip is rounded in the shape of a water droplet, the curvature of the blade back fits snugly with the fingers, and the blade length is 10-15cm.
Typical case: The Buck 110 waterdrop head folding knife is made of 420HC stainless steel and equipped with a deer antler handle, which can accurately peel off deer skin; The Cold Steel American Legal Pattern Waterdrop Knife achieves long-lasting sharpness in outdoor environments through Tru Sharp steel and G-10 handle.
Application scenario: Processing thin film attached animal skins such as deer and antelope in hunting scenes.
Upward lifting peeling knife
Design feature: The rear end of the blade is raised by 15 ° -20 °, forming a unique cutting angle, and the blade length is 12-18cm.
Typical case: The Mola Companion Upward Peeling Knife uses Sanmei steel and rubber handle, which can efficiently peel off the subcutaneous fat layer of wild boars; The Kaba BK2 upturned knife is adapted to operate in humid environments through 1095 carbon steel and Kraton handle.
Application scenario: Processing animal skins with thick fat layers such as wild boars and bears.
Surgical grade skinning knife
Design features: Blade length of 6-10cm, blade accuracy of ± 0.01mm, equipped with a detachable disinfection handle.
Typical case: The surgical peeling component of the Swiss Army Knife is made of 440C stainless steel and equipped with an adjustable blade tension system to achieve laboratory level accuracy; The German Martin surgical peeler uses ceramic coating and ergonomic handle to reduce long-term operational fatigue.
Application scenarios: Biological specimen preparation or medical flap transplantation surgery.
3, Advanced Decision Model for Knife Type Selection
(1) Priority sorting of materials and processes
Bone splitting knife: hardness>toughness>corrosion resistance (recommended steel: 5Cr15MoV, VG-10, AUS-10)
Peeling knife: sharpness>corrosion resistance>toughness (recommended steel: S30V, ZDP-189, M390)
(2) Scene adaptation assessment
Selection criteria for scene dimension bone splitting knife and peeling knife
Animal body size: Large livestock → Axe shaped knife, medium and small → Bone cutting knife with thin film attachment → Water droplet head, fat layer → Upward lifting style
Environmental humidity and humidity → Rust proof coating in humid environment → Ceramic coating or stainless steel coating in humid environment
High frequency operation frequency → Fine operation of full keel structure → Detachable blade design
(3) Ergonomic optimization
Bone splitting knife: The handle should have anti slip patterns and weight blocks, and the recommended grip length is ≥ 12cm
Peeling knife: The handle should conform to the natural curvature of the fingers, and the recommended grip length is 8-10cm
4, Industry Trends and Technological Frontiers
Composite material application: The combination of carbon fiber handle and powder metallurgy steel reduces tool weight by 30% while improving strength.
Intelligent cutting edge technology: By using a laser interferometer to detect the microstructure of the cutting edge, personalized heat treatment processes can be achieved.
Modular design: The replaceable blade system meets the needs of multiple scenarios such as bone splitting, peeling, and bone removal, such as the LeZeMan Signal multifunctional tool.
