German letigre tools letigre models letigre prices

letigre tools are made of copper alloy. Due to copper's good thermal conductivity and its characteristic of being almost carbon-free, the heat generated in a short time when the tool rubs against or impacts an object is absorbed and conducted. Another reason is that copper itself is relatively soft, providing good compliance during friction and impact, making it difficult to produce tiny metal particles. As a result, we hardly see any sparks, so explosion-proof tools are also called non-sparking tools. The materials for explosion-proof tools are beryllium bronze and aluminum bronze. Beryllium bronze alloys and aluminum bronze alloys do not spark upon impact or friction, making them very suitable for manufacturing safety tools used in explosive, flammable, strong magnetic, and corrosive environments. BeA-20C alloy withstands an impact energy of 561IJ in hydrogen containing 30% or in methane-air-oxygen mixtures containing 6.5-10%, without sparking or combustion after 20 impacts.

letigre tool applications

Petroleum refining and petrochemical industry, coal mines, oil fields, natural gas chemical industry, explosives industry, chemical fiber industry, paint industry, fertilizer industry, various pharmaceutical industries. Oil tankers and liquefied petroleum gas vehicles, aircraft, warehouses handling flammable and explosive goods, electrolysis workshops, communication equipment assembly workshops, and places requiring tools that are rust-proof, wear-resistant, and non-magnetic. Striking box-end wrenches, striking hex wrenches, offset-handle striking box-end wrenches, offset-handle striking hex wrenches, straight-handle convex striking box-end wrenches, offset-handle convex striking box-end wrenches. Striking open-end wrenches, single-head open-end wrenches, pry-bar open-end wrenches, straight-handle box-end wrenches, offset-handle box-end wrenches, pry-bar box-end wrenches, double-head open-end wrenches, double-head box-end wrenches, combination wrenches, universal wrenches, adjustable hook wrenches, hook wrenches, adjustable wrenches, C type wrenches, single-head drum wrenches, double-head drum wrenches, universal drum wrenches, F type wrenches, square-head F type wrenches, anti-slip F type wrenches, reinforced claw valve wrenches. American pipe wrenches, British pipe wrenches, light-duty chain wrenches, belt wrenches, wire cutters, diagonal pliers, pump pliers, slip-joint pliers, locking pliers, lineman's pliers, flat-nose pliers, needle-nose pliers, diagonal cutting pliers, snap-ring pliers (internal and external). Octagonal hammers, German-style octagonal hammers, rust-removal hammers, ball-peen hammers, mechanical hammers, claw hammers, inspection hammers, flat-tail inspection hammers, nail pullers. Safety axes, axes, pickaxes, anvils, plumb bobs, slotted screwdrivers, Phillips screwdrivers, striking screwdrivers, clamp-handle screwdrivers, T type screwdrivers, double-ended screwdrivers, awls, hand needles, listening rods, hacksaw frames, hacksaw blades, keyhole saws, pry bars, tool sets.

letigre tool classification

Explosion-proof tools are internationally referred to as "safety tools" and "non-sparking tools," and domestically as "explosion-proof tools." Explosion-proof tools produced, sold, and distributed in China can be divided into two main categories based on material: 1. Aluminum-copper alloy (commonly known as aluminum bronze) explosion-proof tools. The specific material is a copper-based alloy composed of high-purity electrolytic copper as the base with appropriate amounts of aluminum, nickel, manganese, iron, and other metals. 2. Beryllium-copper alloy (commonly known as beryllium bronze) explosion-proof tools. The specific material is a copper-based alloy composed of high-purity electrolytic copper as the base with appropriate amounts of beryllium, nickel, and other metals. Both materials have excellent thermal and electrical conductivity. After heat treatment, the hardness and wear resistance of aluminum bronze are nearly identical to those of beryllium bronze, both reaching above HRC30o. Beryllium bronze is non-magnetic and can be used in strong magnetic field environments. Explosion-proof tools can also be divided into two main categories based on manufacturing process: 1. Casting process: This is a traditional manufacturing process and was the internationally common technology for manufacturing explosion-proof tools in the 80s. Most domestic explosion-proof tool manufacturers have continued to use this process to date. Advantages of the casting process: simple process, low manufacturing cost. Disadvantages: lower product density, hardness, tensile strength, and torque; more pores and sand holes, resulting in shorter product service life. 2. Forging process: The latest international manufacturing process, using large presses or punch presses with high-heat-resistant forming molds to forge in a single step. Advantages of the forging process: significantly increases product density, hardness, tensile strength, and torque; basically eliminates pores and sand holes, extending the mechanical performance and service life of the product by approximately 1 times compared to the traditional casting process. Disadvantages: higher investment in equipment and molds, resulting in higher costs.

letigre tool usage

1) Explosion-proof tools provide safety assurance for personnel working in flammable, explosive, and corrosive environments, enhancing social safety and allowing workers to operate with greater peace of mind. After daily use, explosion-proof tools require proper maintenance, which is crucial for their service life. Improper maintenance may prevent the tools from serving us for a long time. First, store the tools in a dry place to protect the working parts from damage. In daily work, after 20 consecutive strikes, surface deposits on the tools should be cleaned off before further use. Do not use continuously, as prolonged friction may cause the tools to overheat, potentially damaging the product. 2) After use, wipe clean surface dirt and deposits, and store in a dry, safe place. 3) Striking tools must not be struck continuously; allow appropriate intervals after ten strikes, and promptly remove adhering debris from the product before continuing use. 4) Wrenches must not be used with excessive force. Do not extend the lever arm by attaching sleeves or binding other metal rods, and do not use a hammer to tighten fasteners (except for striking wrenches). 5) Cutting-edge tools should be gently ground against a grinding wheel in a water trough. Do not apply excessive force or prolong contact with the grinding wheel. 6) During actual operation with striking and chiseling tools, clear site debris and corrosive oxides from the working surface to prevent third-party impacts. Based on the above performance and usage, aluminum-copper alloys are more suitable for normal pressure equipment and environments with less stringent explosion-proof requirements (such as gas stations and small oil depots). Beryllium-copper alloy explosion-proof tools are suitable for more demanding applications (such as refineries, gas transfer stations, gas production plants, and drilling teams). 7) Remove surface oil stains from all products before use, and refer to the instructions for steel tools.

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