CN202768639U

CN202768639U - Self-lubricating steel sliding block with high hardness surface

Info

Publication number: CN202768639U
Application number: CN201220463703.4U
Authority: CN
Inventors: 袁翔飞; 陈应东; 赵骏贤
Original assignee: ZHEJIANG SF OILLESS BEARING CO Ltd
Current assignee: ZHEJIANG SF OILLESS BEARING CO Ltd
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-06
Anticipated expiration: 2022-09-12

Abstract

The utility model discloses a self-lubricating steel sliding block with a high hardness surface. The steel sliding block is a 45#steel sliding block with a working area which is subjected to surface hardening, and a connecting hole for fixing is arranged on the sliding block. The self-lubricating steel sliding block is characterized in that blind holes are orderly distributed on the upper surface and/or left and right side surfaces of the working area, solid self-lubricating materials of graphite or polytetrafluoroethylene (PTFE) are inlaid in the blind holes, and the surfaces of the outer ends of the solid self-lubricating materials are flush with the outer surface of the inlaid sliding block. The surface of the working area is subjected to hardening treatment, so that the surface hardness of the sliding block is improved, the sliding block is abrasion resistant, simultaneously toughness and malleability of original materials in the sliding block are maintained, the solid lubricating materials are inlaid on the working surface, and the self-lubricating effect can be achieved by the aid of the solid lubricating materials inlaid on the surface in the friction process of the sliding block. The self-lubricating steel sliding block with the high hardness surface has the advantages that the self-lubricating property is excellent, the surface hardness is high, the sliding block is abrasion resistant and impact resistant, and the solid lubricant is inlaid in the sliding block.

Description

High surface hardness selflubricating steel slide block

Affiliated technical field

The utility model relates to a kind of sliding bearing of slide block pattern, relates in particular to a kind of selflubricating steel slide block of high surface hardness.

Background technique

Slide block is indispensable sliding bearing in automatic line, the heavily loaded mould.For make the slide block performance fully satisfy to produce in friction factor low, wear resistance good, non-refuelling is lubricated and the various requirement such as heatproof, the research of slide block is deepening continuously.General slide block is: the spheroidal graphite cast iron slide block, contain 3.6～3.8% carbon in its material composition, and most carbon is that the form with spheroidal graphite is present in the cast iron materials, so product has the mechanical property of plain cast iron and certain Wear vesistance.Use for making product can not frequently refuel the machinery safeguarded or the guide plate position of mould at some, can get out the hole that distributes according to certain rule at the spheroidal graphite cast iron slide plate, then the solid lubricants such as graphite, two sulphur molybdenums are embedded wherein, form the spheroidal graphite cast iron slide plate of solid lubricant inlaid, this kind slide plate has self-lubricating property excellence, non-maintaining, the characteristics of good mechanical property.But larger in some loads, impact force is arranged, wear extent requires little, and the occasion that will rectificate working life is when using such as the guide plate position of automobile die, precision die etc., because spheroidal graphite cast iron self hardness is not high, though also can improve its hardness by Quenching Treatment, because the factor of self material metallographic structure, the spheroidal graphite cast iron toughness after the quenching obviously descends, in the situation that impact force is arranged, the spheroidal graphite cast iron slide plate of solid lubricant inlaid is easy to produce cracked.

The model utility content

The purpose of this utility model is to provide that a kind of self-lubricating property is excellent, surface hardness is high, wear-resistant, the high surface hardness selflubricating steel slide block of impact-resistant solid lubricant inlaid.

In order to reach above-mentioned requirements, the technical solution of the utility model is: it is that a working zone is through hard-faced 45# steel slide block, be shaped with for fixing attachment hole at slide block, it is characterized in that the blind hole that upper surface and/or left and right sides in the working zone are shaped with orderly distribution, be inlaid with the solid self lubricant material of graphite or PTFE in blind hole, the outer end face of solid self lubricant material is concordant with the outer surface of inlaying slide block.

High surface hardness selflubricating steel slide block according to the such scheme design, Quenching Treatment is carried out on surface, working zone at it, improved the surface hardness of slide block, make product more wear-resisting, simultaneously in inner toughness and the ductility that keeps original material of slide block, be inlaid with solid lubricant at working surface, product allowed in friction process be embedded in the effect that surperficial solid lubricant plays selflubricating.

Description of drawings

Fig. 1 is the plan view of high surface hardness selflubricating steel slide block;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the right elevation of Fig. 1;

Fig. 4 is the B-B sectional drawing of Fig. 1.

Among the figure: 1, working zone; 2, slide block; 3, attachment hole; 4, blind hole; 5, solid self lubricant material; 6, outer end face 7, outer surface.

Embodiment

Below in conjunction with accompanying drawing the utility model content is further described.

Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the structural drawing of the high frequency hardening steel slide plate of solid lubricant inlaid, it is that 1 territory, a working area is through hard-faced 45# steel slide block 2, be shaped with for fixing attachment hole 3 at slide block 2, more than the steel base hardness HRC50 in its surface hardening zone, depth of hardening zone A is 0.3～2mm.1 upper surface and left and right sides are shaped with the blind hole 4 of orderly distribution in the working zone, are inlaid with the solid self lubricant material 5 of graphite or PTFE in blind hole 4, and the outer end face 6 of solid self lubricant material 5 is concordant with the outer surface 7 of inlaying slide block 2.According to the needs that use, the solid self lubricant material 5 of inlaying also can be only on upper surface or the working zone 1 in left and right sides of slide block 1 working zone 1.

Claims

1. high surface hardness selflubricating steel slide block, it is that a working zone is through hard-faced 45# steel slide block, be shaped with for fixing attachment hole at slide block, it is characterized in that the blind hole that upper surface and/or left and right sides in the working zone are shaped with orderly distribution, be inlaid with the solid self lubricant material of graphite or PTFE in blind hole, the outer end face of solid self lubricant material is concordant with the outer surface of inlaying slide block.