铁路护栏模具热处理技术及工艺
任何模具出现问题都是有一定原因的,一般情况下是铁路护栏模具主要工作零件的材料的问题,选材不当,材料性能不良,不耐磨,模具钢未经精炼,具有大量的冶炼缺陷,工艺不完善,遗存有热处理隐患。或是模具结构设计问题,卸料力过大使凸模承受交变载荷加剧等。目前铁路护栏模具行业价格十分混乱,发展前景令人担忧,很多厂家只关心价格和成本,忽略了模具的技术质量,对用户而言合理的质量价格比是最优选择,所以进口模具价格比国产模具高8-10倍,仍有其市场空间。在我们使用铁路护栏模具之前,先用水将其进行浸泡,增强它的韧性,增加模具的使用寿命。存放必须定置定位,为不同的护坡模具保存建立不同的库位。在保存前,必须进行防腐蚀处理及保护,不可以受到阳光的直射,也不可放在腐蚀性药品周围。护坡模具应贮存于常温干燥库中,避免重力挤压,不允许与有毒有害物质混放,远离热源。这样既能节约成本又能使生产工作顺利进行。
There are certain reasons for any mold problems. Generally speaking, it is the material problem of the main working parts of railway guardrail mold, such as improper selection of materials, poor material performance, non-wear resistance, non-Refining of die steel, a large number of smelting defects, imperfect process, and hidden dangers of heat treatment. Or the design of the die structure, the excessive unloading force makes the punch bear the increasing alternating load and so on. At present, the price of railway guardrail die industry is very confused, and its development prospects are worrying. Many manufacturers only care about price and cost, ignoring the technical quality of the die. For users, reasonable quality-price ratio is the best choice. Therefore, the price of imported die is 8-10 times higher than that of domestic die, and there is still room for its market. Before we use the rail guardrail mould, soak it with water to enhance its toughness and increase its service life. Storage must be positioned and different storage locations should be established for different slope protection moulds. Before preservation, it must be treated and protected against corrosion. It should not be exposed to direct sunlight or placed around corrosive drugs. Slope protection moulds should be stored in normal temperature drying storage, avoid gravity extrusion, do not allow mixing with toxic and harmful substances, away from heat sources. In this way, the cost can be saved and the production work can be carried out smoothly.
制模工艺不完善,热处理技术及工艺有问题,软点及硬度不均,产生微裂纹、甚至开裂,研磨抛光不到位,表面粗糙度。迫于竞争需要,国内的模具厂家盲目打价格战,以次充好的情况屡见不鲜,这是一种短期行为,同时也为国内模具行业的发展带来了挑战。我们应当在确保品质的前提下,加强管理,扩大规模,降低成本才是正确的。
Molding process is not perfect, heat treatment technology and process problems, soft spots and uneven hardness, micro-cracks, or even cracks, grinding and polishing is not in place, surface roughness. www.langfangbanjia.cn www.diandongmenl.cn www.yanglaoyuans.cn www.hengshuibanjia.cnwww.dianjiaojii.cnwww.guanjiaojii.cnDue to the need of competition, domestic mould manufacturers blindly fight price war, which is a short-term behavior, but also for the development of the domestic mould industry has brought challenges. We should strengthen management, expand scale and reduce cost on the premise of ensuring quality.