Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Guardrails and a manufacturing method thereof
The invention provides guardrails. The surfaces of the working positions of the guardrails are coated with carbide coatings. The invention also provides a manufacturing method of the guardrails. The upper and the lower surfaces of the working positions of the guardrails are coated with the carbide coatings. Quasi-single crystal WC compact ceramic coatings, micron WC ceramic coatings and WC-and-basal body compound coatings are distributed in turn in a gradient way from outside to inside and carbon steel surfaces are coated with the quasi-single crystal WC compact ceramic coatings, the micron WC ceramic coatings and the WC-and-basal body compound coatings. Basal body-and-tungsten complexes that are obtained in a casting way are introduced with an outer carbon source from the outside, and then heating operation and heat preservation operation are performed so that the carbide coatings are formed on the surfaces of the basal bodies. Metallurgical bonding is applied between each of the coatings and each of the basal bodies, and the bonding force is strong. The guiderails solve the problems of weak bonding force and easy falling situation of particles since metallurgical bonding is not applied between each hard particle and each metal basal body with the conventional method. The abrasion proof performance of the working surfaces of the guardrails is greatly enhanced.
Guardrails and a manufacturing method thereof
The invention provides guardrails. The surfaces of the working positions of the guardrails are coated with carbide coatings. The invention also provides a manufacturing method of the guardrails. The upper and the lower surfaces of the working positions of the guardrails are coated with the carbide coatings. Quasi-single crystal WC compact ceramic coatings, micron WC ceramic coatings and WC-and-basal body compound coatings are distributed in turn in a gradient way from outside to inside and carbon steel surfaces are coated with the quasi-single crystal WC compact ceramic coatings, the micron WC ceramic coatings and the WC-and-basal body compound coatings. Basal body-and-tungsten complexes that are obtained in a casting way are introduced with an outer carbon source from the outside, and then heating operation and heat preservation operation are performed so that the carbide coatings are formed on the surfaces of the basal bodies. Metallurgical bonding is applied between each of the coatings and each of the basal bodies, and the bonding force is strong. The guiderails solve the problems of weak bonding force and easy falling situation of particles since metallurgical bonding is not applied between each hard particle and each metal basal body with the conventional method. The abrasion proof performance of the working surfaces of the guardrails is greatly enhanced.
Guardrails and a manufacturing method thereof
XU YUNHUA (Autor:in) / ZHAO NANA (Autor:in) / YAN YINGLIN (Autor:in) / LIANG SHUHUA (Autor:in) / ZHONG LISHENG (Autor:in) / YE FANGXIA (Autor:in) / WANG LIANGLIANG (Autor:in) / ZOU JUNTAO (Autor:in) / XIAO PENG (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
B22D
CASTING OF METALS
,
Gießen von Metallen
/
B22C
FOUNDRY MOULDING
,
Gießformen
/
C21D
Veränderung der physikalischen Struktur von Eisenmetallen
,
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
/
C23C
Beschichten metallischer Werkstoffe
,
COATING METALLIC MATERIAL
/
E01B
PERMANENT WAY
,
Gleisoberbau