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Our three EDM grades were especially developed for processing with electro-erosion (wire and sink erosion). They contain a corrosion inhibitor which protects them from pitting corrosion in the erosion bath. These grades ideally combine hardness and fracture toughness. They are optimized with regards to reducing the risk of tension cracks during the EDM process.
三个特别开发出来用于电火花加工的EDM 牌号，他们包含一种缓蚀剂，这可以保护他们电腐蚀。这三个牌号有良好的硬度和断裂韧性，降低了在电火花加工过程中产生张力裂缝的风险。
WC grain size medium, 2.5-3.5μm
WC 晶粒度∣介质，2.5-3.5μm
Grade | Cobalt content %w/w | Properties and recommendations
|
RCR17 | 8.5 | Our hardest EDM grade is applied in punches and dies. It is used for punching thin foils and sheets of low toughness and for processing abrasive or soft materials.
用于冲孔和模具硬的牌号。它用于冲孔薄板和低韧性的材料，以及用来加工耐磨和软材料。 |
RCR24 | 12.0 | The grade RCR24 with 12% cobalt shows a somewhat higher toughness than RCR17. It is the standard cemented carbide grade used in electro-erosion. Its application range corresponds approximately to the one of RM22. Somewhat thicker and tougher foils and sheets can also be punched.
与RCR17相比，RCR24具有较高的韧性。它是用于电蚀刻的标准硬质合金牌号。其应用范围近似地对应于RM22，也可以冲更厚和更硬的板。 |
RCR30 | 15.0 | For very large EDM blocks and plates, we have developed a special electro-erosion grade that contains a bit more cobalt and also has a slightly higher initial grain size of 3.5μm. The corrosion inhibitor has also been adjusted. This grade is characterized by a higher fracture toughness and reduces the risk of tension cracks significantly, even with asymmetrical erosion. The area of application is similar to that of RM30, whereby even thick, tough materials can be punched using RCR30
对于非常大的 EDM 板块，我们开发了特殊的电蚀的牌号，这包含更多一点的钴也有稍高的3.5μm晶粒尺寸，缓蚀剂也进行了调整。这种牌号的特点是高的断裂韧性，显著降低了张力裂缝的风险，即使是与不对称的蚀刻工况下。应用领域是类似于RM30，这样可以使用 RCR30 冲厚材料或者坚韧的材料。 |
The coarse grain grades have higher fracture toughness and thermal shock resistance in comparison to the finer grades with the same cobalt content.They are therefore well suited against impact stress. A primary area of application is in mining/road construction.
在同样钴含量情况下，粗颗粒牌号具有更高的断裂韧性和抗热震性。因此，这些牌号比较耐冲击。应用的主要领域是在矿山和公路建设。
WC grain size coarse, 5.5-6.5μm
WC 晶粒度 粗，5.5-6.5μm
Grade | Cobalt content %w/w | Properties and recommendations
|
RB14 | 7.0 | Application of this coarse grain grade for milling tools, deburrers, rollers, chisels and choppers in mining, road construction, concrete processing, ore mining and processing, crude oil production, recycling and steel manufacturing.
用做铣削工具，去毛刺机、轧辊、凿子和砍刀。应用领域为采矿、道路施工、混凝土加工、 采矿和加工、原油生产、回收和钢铁制造。 |
RB10 | 10.0 | Application of this coarse grain grade for milling tools, deburrers, rollers, chisels and choppers in mining, stone processing, road construction ,concrete processing, ore mining and processing, crude oil production, recycling and steel manufacturing. Alternative to RB14 if higher breaking resistance and impact resistance are required. Also used in punching tools for metal sheets of very high toughness.
用做铣削工具，去毛刺机、轧辊、凿子和砍刀。应用领域为采矿、石材加工、道路施工、 混凝土加工、采矿和加工、原油生产、回收和钢铁制造。在需要更高的断裂阻力和抗冲击性的情况下替代RB14。也用于冲特别高韧性的金属板。 |
RB15-H | 15.0 | Fracture-resistant, impact-resistant coarse grain grade for shredders, hammer jaws, hammer tools, drawing tools for highly tough materials, hot wire rollers, chisels, pressing dies. Used in mining, road construction, waste processing and recycling, ore mining and processing, steel manufacturing, reshaping/forming technology. Also used in punching tools for metal sheets of very high toughness.
是抗断裂、 抗冲击的粗粒级的牌号。用于破碎机、锤爪、锤工具，拉深高韧性材料的模具、 热拉拔模具、凿子、冲压模具。应用领域为采矿、道路建设、废物处理和回收、采矿和加工、钢铁制造、重塑/成形技术。也用于冲压模具的非常高韧性的金属板。 |
RB20-H | 22.0 | This carbide grade combines a high cobalt content with coarse WC grains. It is extremely break-resistant and impact-resistant. Used in cold and hot forming tools, in pressing dies and drawing tools, in the fabrication of rods, valves and springs made of highly tough steels, in hammer jaws and in shredders for scrap processing and recycling.
这种是高钴含量的大晶粒度的牌号。它是非常耐破裂和耐冲击。用于冷成型和热成型工具，用于冲压模具和拉深模具，用于制造中棒，阀门和高韧性钢做的弹簧，用于锤爪和废钢回收的破碎机。 |
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