The invention discloses a hammer head for hammer breaker, which is made of raw material tungsten carbide 91%~93%, carbon black 2~2.5%, binder 2~2.5%, titanium carbide 0.25~0.5%, chromium carbide 0.25~0.5%, pure water 2.5~3.5% and sintered at high temperature. The raw material ratio of the invention is scientific, with tungsten carbide as the main raw material, and carbon black, binder, titanium carbide, chromium carbide and pure water as supplementary materials. Tungsten carbide has super hardness. Carbon black removes oxygen ions from mixed oxygen and other oxides in the material, which can improve the product characteristics. Titanium carbide and chromium carbide reduce the sintering temperature of the alloy, improve the strength and toughness of the product, while pure water is the guarantee. The homogeneity of mixing is ensured by isostatic pressing with binder. When crushing hard materials such as carbide and fossil, the service life of finished hammer head is 3-5 times longer than that of ordinary steel, which greatly prolongs the service life, saves maintenance cost and labor intensity of maintenance personnel, and improves work efficiency. It can also be used in complex environmental conditions, and does not affect its use effect at 150 C.
【技术实现步骤摘要】
锤破机专用锤头及其制备方法
本专利技术涉及锤破机,尤其是涉及一种锤破机专用锤头,本专利技术还包括锤破机专用锤头的制备方法。
技术介绍
锤破机(锤式破碎机)用于破碎各种中硬且磨蚀性弱的物料,一般来说物料的抗压强度不超过100MPa,含水率小于15%,被破碎物料为煤、盐、白垩、石膏、砖瓦、石灰石、页岩等,还用于破碎纤维结构、弹性和韧性较强的碎木头、纸张或破碎石棉水泥的废料以回收石棉纤维等,此外,锤式破碎机不仅可用于破碎生产线、制砂生产线,也可在选矿生产线中替代圆锥式破碎机。锤头是锤破机的主要工作部件,目前锤破机使用的锤头为锰合金锤头,虽较普通的碳钢耐磨,硬度有显著提高,破碎高岭土、石灰石、矿渣、大理石、鹅卵石效果显著,但是在破碎碳化石(如碳硅石)等具有较高硬度及韧性的物料时,锤头磨损严重,且更换零部件费工费时,导致生产效率极低。
技术实现思路
本专利技术的目的在于提供一种能破碎较高硬度、韧性物料的锤破机专用锤头,该锤头在150℃温度下不影响正常使用,大大提高了工作效率;本专利技术还提供了该锤破机专用锤头的制备方法。为实现上述目的,本专利技术可采取下述技术方案:本专利技术所述的锤破机专用锤头,是由原料碳化钨、炭黑、粘结剂、碳化钛、碳化铬和纯水按以下重量百分配比混合后经高温烧结而成:碳化钨91%~93%,炭黑2~2.5%,粘结剂2~2.5%,碳化钛0.25~0.5%,碳化铬0.25~0.5%,纯水2.5~3.5%。所述粘结剂为粘度为39.5~45.8mpa.s(毫帕秒)的聚乙烯吡咯烷酮。所述碳化钨原料中碳化钨含量≥99%,其粒度为8~10μm;所述炭黑为高纯炭黑,其灰 ...
【技术保护点】
1.一种锤破机专用锤头,其特征在于:所述锤头是由原料碳化钨、炭黑、粘结剂、碳化钛、碳化铬和纯水按以下重量百分配比混合后经高温烧结而成:碳化钨91%~93%,炭黑2~2.5%,粘结剂2~2.5%,碳化钛0.25~0.5%,碳化铬0.25~0.5%,纯水2.5~3.5%。
【技术特征摘要】
1.一种锤破机专用锤头,其特征在于:所述锤头是由原料碳化钨、炭黑、粘结剂、碳化钛、碳化铬和纯水按以下重量百分配比混合后经高温烧结而成:碳化钨91%~93%,炭黑2~2.5%,粘结剂2~2.5%,碳化钛0.25~0.5%,碳化铬0.25~0.5%,纯水2.5~3.5%。2.根据权利要求1所述的锤破机专用锤头,其特征在于:所述粘结剂为粘度39.5~45.8mpa.s的聚乙烯吡咯烷酮。3.根据权利要求1所述的锤破机专用锤头,其特征在于:所述碳化钨原料中碳化钨含量≥99%,其粒度为8~10μm;所述炭黑为高纯炭黑,其灰分含量<0.01%;所述碳化钛原料中钛含量≥99.5%,其粒度为5~7μm;所述碳化铬原料中铬含量≥99.5%,其粒度为5~7μm;所述纯水的电...
【专利技术属性】
技术研发人员:杨东平,
申请(专利权)人:河南晟道科技有限公司,
类型:发明
国别省市:河南,41
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