D1015 Tungsten carbide surfacing electrode Note: It is a low hydrogen sodium type coated tungsten carbide surfacing electrode with carbon steel as the welding core, which relies on the tungsten carbide alloy in the coating for transition, and the tungsten content of the surfacing metal 40~50% 。 Due to the thick coating, the casing is longer, and the coating is easy to peel off after the electrode turns red, so it is better to use DC reverse connection and lower current. Usage: suitable for surfacing of mechanical parts resistant to strong rock abrasion, such as mixing blades of mixed soil, bulldozer and pump Pu blade, dredger blade, high-speed sand mixing box, etc. Chemical composition of surfacing metal（ % ） C | W | Mn | Si | Fe | C1.5-3.0 | 40.0-50.0 | ≤2.0 | ≤4 | allowance |
Hardness of surfacing layer: HRC≥65 D1016 surfacing electrode Note: The pure nickel surfacing electrode relies on the tungsten carbide transition alloy in the coating, and the surfacing metal has good crack resistance and ease reactivity, so DC reverse connection is adopted. Use: used for high temperature oxidation resistance and resistance Abrasive materials Surfacing of wearing parts, such as blast furnace bell bucket, sintering rack teeth, etc. Chemical composition of deposited metal /% W C | other | Ni | ≈55 | 5-10 | allowance |
Hardfacing hardness HRC ： ≥45 D1017 Tungsten carbide surfacing electrode model: EDW-B-15 Note: Tungsten carbide surfacing electrode is adopted H08A Made of steel band O Shape, diameter 3.2mm , the internal particle size is 60-80 The content is the quality of the welding core 60% Above casting Tungsten carbide, coated with alkaline low hydrogen type coating Relying on excessive tungsten carbide in the welding core, the welding process is good, slag removal is easy, and the arc is stable. DC welding is adopted, and the current is low, D717 It is seamless tubular welding rod. Usage: used for surfacing welding of mechanical parts and components resistant to strong rock abrasion, such as the jaw back of three cone bit, blower blade, strong coal mining drum, sugar machine roller, concrete mixer blade, etc. Chemical composition of deposited metal /% C | Si | Mn | Cr | W | Mo | Ni | other | 1.5-4 | ≤4 | ≤3 | ≤3 | 50-70 | ≤7 | ≤3 | ≤3 |
Hardfacing hardness HRC ： ≥60 D1025 Tungsten carbide alloy electrode explain: D708 Tungsten carbide transition surfacing for tungsten carbide alloy electrode 65%-85% Excellent technology for slag removal and convenient arc stability! The welding rod does not need to be preheated before welding and insulated after welding. High hardness, high wear resistance, erosion resistance, etc. Good weldability. Resistance to abrasive wear of rock sand, prolonging service life of equipment 4-8 Times. . Usage: Mainly used for surfacing repair of worn parts of chemical equipment and various mechanical equipment. Such as metallurgical machinery, mining machinery, turnouts, jaw plates, buckets, shovel teeth, engineering quarrying ships and other brick cutter, screw, mixer blades, fan blades, mineral processing machinery, engineering machinery, building materials machinery!! Chemical composition of deposited metal /% C | Cr | Ni | Si | W | ≤1.5 | ≤3.0 | 5.0-7.0 | ≤1.0 | 70-85 |
Hardness of surfacing layer: HRC≥70 D1105 Tungsten carbide alloy hardfacing electrode explain: TDM-8 Tungsten carbide alloy hardfacing electrode Recommended products by the Ministry of Building Materials Industry Produced by our factory TDM-8 Tungsten carbide alloy wear-resistant surfacing welding rod is mainly developed for the wear characteristics of conveying screw, mixer blade, agitator knife, auger, pair stick, bulldozer bucket, digging bucket, grab bucket, etc. of brick factory. It is developed with tungsten carbide and low hydrogen sodium type coating as the main raw materials in combination with the Kobe technology process in Japan. It can be used for both AC and DC. The welding layer has the characteristics of high hardness, good toughness, high temperature resistance and wear resistance. It is used for surfacing welding of carbon steel, alloy steel, cast iron, cast steel and other surfaces. Hardfacing metal: high manganese steel core, tungsten content 57% , and gold powder 12% , ink, cobalt, chromium and other elements. Chemical composition（ % ）： C | Cr | W | Mo | B | zero point zero five | nine point eight | fifty-seven | seventeen | four point two |
Reference current: φ3.2 90-120A φ4.0 160-190A φ5.0 190-220A Hardness of surfacing layer: (air cooling after welding) HRC≥75 matters needing attention: one Before welding, sundries on the surface of base metal must be cleaned up. two Low current shall be used to prevent arc resistance crack three For example, thick welding layer can be repeatedly welded. | 
