CN205668635U

CN205668635U - A kind of cast steel with protective layer or cast iron propeller

Info

Publication number: CN205668635U
Application number: CN201620304352.0U
Authority: CN
Inventors: 邵齐
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-13
Filing date: 2016-04-13
Publication date: 2016-11-02
Anticipated expiration: 2026-04-13

Abstract

The utility model discloses a kind of cast steel with protective layer or cast iron propeller; including the blade being made by cast steel or cast iron; blade is evenly arranged on the outer wall of oar shaft sleeve along oar shaft sleeve circumferencial direction; adhesive layer, adhesive layer overlying matcoveredn it is covered with in the material main body of oar shaft sleeve outside wall surface and blade surface.This utility model cost of manufacture is low, improves cast steel or the intensity of cast iron propeller and corrosion resistance；And improve cast steel or the smoothness on cast iron propeller surface, reduce cast steel or cast iron propeller resistance operationally and between current, it is possible to increase cast steel or the rotating speed of cast iron propeller, reduction oil consumption.

Description

A kind of cast steel with protective layer or cast iron propeller

Technical field

This utility model relates to a kind of cast steel with protective layer or cast iron propeller, belongs to Propeller technology field.

Background technology

Manufacture processing cost is low, impact resistance ability strong, dimension owing to it has for the propeller being made by cast iron or cast steel Repair low cost and other advantages to be widely used.Cast steel or cast iron propeller on boats and ships need to carry out work under water for a long time Make, but be easy to be corroded owing to sea water has the surface of saline alkali, cast steel or cast iron propeller, in actual applications, cast steel Or cast iron propeller gets rusty in the surfacing abrasion that comes off using 1 year left-and-right spiral oar, sudden and violent leak original rough surface, affect it Work, and rear surface of getting rusty coarse affect its rotate propulsive efficiency.

Accordingly, it would be desirable to a kind of corrosion resistant cast steel or cast iron propeller, conventional means can consider at cast steel or cast iron spiral shell The surface of rotation oar increases by one layer of corrosion protective layer.In prior art, oil is sprayed on the generally surface at cast steel or cast iron propeller Paint does protective layer, and because the casting general cast steel of reason or cast iron propeller substrate surface have pore and rough place Need putty (atomized ash) to fill up, reached anticorrosion by external coating paint and filled up rough surface and increase smooth interaction.But In actual use, the protection of paint causes effect the best because it is the most wear-resistant, and the paint of life-time service rear surface holds Easy to fall off, the substrate surface exposing original casting causes cavity, and because rough surface causes degradation problem under propulsive efficiency.

In sum, the corrosion-resistant problem of cast steel or cast iron propeller also needs to seek new solution.

Utility model content

The purpose of this utility model is to overcome deficiency of the prior art, it is provided that a kind of cast steel with protective layer or Cast iron propeller, solves cast steel in prior art or cast iron propeller surface is easily corroded and wearability is the highest technology Problem.

For solving above-mentioned technical problem, this utility model provides a kind of cast steel with protective layer or cast iron propeller, Including the blade being made by cast steel or cast iron, blade is evenly arranged in the outer wall of oar shaft sleeve along oar shaft sleeve circumferencial direction On, it is characterized in that, the material main body of oar shaft sleeve outside wall surface and blade surface is covered with adhesive layer, and adhesive layer overlying is protected Layer.

Further, described adhesion-layer materials be nickel alclad, nickel alumin(i)um alloy, aluminium bronze, copper alloy, nickel, nickel alloy, In steel alloy or aluminium alloy one or more.

Further, described bondline thickness is 10 microns ~ 5000 microns.

Further, during described protective layer material is copper alloy, steel alloy, nickel alloy, evanohm, pottery or plastics one Kind.

Further, described protective layer thickness is 0.1 millimeter ~ 1 millimeter.

Compared with prior art, this utility model is reached to provide the benefit that:

1) this utility model is covered with protective layer on material main body surface, it is possible to increase cast steel or cast iron propeller wear-resisting by force Degree and corrosion resistance；

2) this utility model is also covered with adhesive layer between material main body and protective layer, improve protective layer and material main body it Between bond strength and also filled up because of casting produce pore alleviate material main body surface roughness；

3) this utility model is because at cast steel or cast iron propeller substrate layer overlying matcoveredn, improve cast steel or cast iron spiral shell The smoothness on rotation oar surface, reduces cast steel or cast iron propeller resistance operationally and between current, in identical working condition Under, it is possible to increase cast steel or the rotating speed of cast iron propeller；Reduce oil consumption, increase the service life greatly；

4) this utility model simple in construction, cost of manufacture is low.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model cast iron and cast steel propeller；

Fig. 2 is the structural representation of this utility model composite protection layer.

In figure: 1, oar shaft sleeve；2, blade；3, material main body；4, adhesive layer；5, protective layer.

Detailed description of the invention

Below in conjunction with the accompanying drawings this utility model is further described.Following example are only used for this is clearly described The technical scheme of utility model, and protection domain of the present utility model can not be limited with this.

As shown in Figure 1-2, a kind of cast steel with composite protection layer of the present utility model or cast iron propeller, including by casting The blade 2 that steel or cast iron are made, blade 2 is evenly arranged on the outer wall of oar shaft sleeve 1 along oar shaft sleeve 1 circumferencial direction, With reference to Fig. 2, the material main body 3 on oar shaft sleeve 1 outside wall surface and blade 2 surface being covered with adhesive layer 4, adhesive layer 4 overlying is protected Layer 5.

As this utility model one embodiment, adhesive layer 4 material is nickel alclad, nickel alumin(i)um alloy, aluminium bronze, copper conjunction In gold, nickel, nickel alloy, steel alloy or aluminium alloy one or more.Built-up welding, electric arc spray can be passed through on the surface of material main body 3 Be coated with, plating or electrophoresis process be coated with Al contained Ni, nickel alumin(i)um alloy, aluminium bronze, copper alloy, nickel, nickel alloy, steel alloy or In aluminium alloy, one or more are as adhesive layer 4, and adhesive layer is to improve the bond strength between protective layer 5 and material main body 3, and And filled up because the pore of casting generation alleviates material main body surface roughness.Such as aluminium bronze can reach in bond strength Micro metallurgic bonding, has good bond strength as adhesive layer, but aluminium bronze is only capable of using as under light load wear；At table Face i.e. reaches the performance of the highest wear-resisting resistance to vacuolus denudation in the case of spraying nickel-aluminum bronze.In the actually used process of adhesive layer In, because of material price problem, so the homogeneous material typically taking price relatively low at adhesive layer i.e. bottom fills up base material Rough surface, throws for polishing later and reserves surplus.Adhesive layer adds the duplicate protection layer that protective layer is formed, and too increases protective layer Density and protective value, prevent from having in manufacture course of products when revealing the exact details under technique gap and heavy wear conditions, adhesive layer pair The degree of protection of material main body 3 can increase.First spraying adhesive layer in material main body, polish after spraying, this process repeats 2 ~ 3 times, final adhesive layer 4 thickness is 0.1 ~ 0.5 millimeter, when 0.5 millimeter, and best results.

As this utility model one embodiment, protective layer 5 material be copper alloy, steel alloy, nickel alloy, chromium, evanohm, One in pottery or plastics.Adhesive layer 4 surface arcing spray or be electroplate with copper alloy, steel alloy, nickel alloy, evanohm, Rustless steel, pottery or plastics are as protective layer 5, as at coastal waters, inland river Polluted water area, rustless steel or evanohm protective layer, having Effect reduces material main body surface and is corroded；Ceramic protective layer can effectively reduce grits wear protection oar because of hardness height hv700-750 Leaf；Copper alloy protective layer is good because of copper area density big dewatering performance, can effectively reduce main unit load；Some spitkits 15 meters Within, at spraying nylon and plastic surface layer, because low price makes do not using precious metal material at cast steel or cast iron propeller In the case of, rotating speed during raising work and between current；Cast steel or cast iron density is little, weight is copper relative to material main body entirety Or rustless steel lighter weight, main unit load can be alleviated in the running of same size blade；Although not being a lot, competing in today Striving the shipping market of fierceness, the oil that each saving is got off is all to reduce cost, reduce fuel emission and pollute.In sum, protect Sheath mainly prevents the abrasion to ship under high speed rotating of the silt stone, improves cast steel or the intensity of cast iron propeller and resistance to Corrosivity；And improve cast steel or the smoothness on cast iron propeller surface, reduce cast steel or cast iron propeller operationally with Resistance between current, under identical working condition, compared with original cast iron and cast steel propeller, it is possible to increase cast steel or cast iron The rotating speed of propeller, reduction oil consumption, increase the service life greatly.First spraying protective layer on adhesive layer, carries out after spraying beating Mill, this process repeats 2 ~ 3 times, and final protective layer 5 thickness is 0.1 ~ 1 millimeter, when 1 millimeter, best results.

This utility model change conventional cast propeller perishable the most wear-resistant and because of casting reason produce coarse The propeller surface quality problems etc. that surface is brought, especially in inland river and complex water areas bend shoal, navigation channel, coastal waters Reef is more once to be damaged, and loses huge for shipowner.This product, in the case of same quality, closes relative to the full copper of entirety The cost of gold or steel alloy only tradition overall 1/5th, cost of manufacture is low, and performance is better than copper propeller, and it is lightweight, More resistant to corrosion, wear under selecting suitable surfacing.

On the premise of corrosion-resistant, wear-resistant, the surface smoothness performance of propeller, make some improvement and deformation, such as list The protective layer of layer, it is also possible to reach the actually used performance of this product.

The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of without departing from this utility model know-why, it is also possible to make some improvement and deformation, these change Enter and deform and also should be regarded as protection domain of the present utility model.

Claims

1. there is cast steel or the cast iron propeller of protective layer, including the blade being made by cast steel or cast iron, blade edge Oar shaft sleeve circumferencial direction is evenly arranged on the outer wall of oar shaft sleeve, it is characterized in that, oar shaft sleeve outside wall surface and blade surface Material main body on be covered with adhesive layer, adhesive layer overlying matcoveredn, described adhesion-layer materials is copper alloy, nickel, nickel alloy, conjunction One in gold steel or aluminium alloy；Described bondline thickness is 10 microns ~ 5000 microns；Described protective layer material is copper alloy, conjunction One in Jin Gang, nickel alloy, evanohm, pottery or plastics.

A kind of cast steel with protective layer the most according to claim 1 or cast iron propeller, is characterized in that, described protective layer Thickness is 0.1 millimeter ~ 1 millimeter.