CN208712836U - Steel-based copper alloy turbine - Google Patents

Abstract

Steel-based copper alloy turbine, including base steel, copper alloy set and bolt；Base steel is in socket type, its outer wall is equipped with the first annular boss and the second annular convex platform extended radially, first annular boss is equipped with multiple keyhole A, keyhole A penetrates through the both sides of the face of first annular boss, second annular convex platform is equipped with multiple keyhole B, and keyhole B penetrates through the both sides of the face of the second annular convex platform；Copper alloy set is set on base steel periphery, and between first annular boss and the second annular convex platform, and periphery is equipped with turbo blade；Bolt is located in keyhole A and keyhole B, and is covered and be integrally formed with copper alloy.The utility model has the advantage of base steel is firmly combined with copper alloy set, fricton-tight between the faying face of the two, loosen.

Description

Steel-based copper alloy turbine

Technical field

The utility model relates to the manufacture of copper turbine, especially a kind of steel-based copper alloy turbine.

Background technique

Double metallic composite material is country's research in recent years, exploitation, a kind of new material promoted.Its advantages are with steel Based on, surface recombination nonferrous metal and alloy, it not only increases the intensity of nonferrous metal and alloy, and more country saves The nonferrous metal such as a large amount of copper material, and it is widely used to the industries such as valve stem nut, worm gear, bearing shell.

Steel-based copper alloy worm gear exactly grows up under this trend, due to requiring to use copper on many mechanical devices Worm gear, to keep copper material demand big.And existing steel-based copper alloy worm gear there are the problem of have, the copper alloy of outer layer set and interior Composite surface between the base steel of layer has slag inclusion, and not fine and close, associativity is poor, and composite layer has phenomena such as sliding, fall off.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a kind of steel-based copper alloy turbine, it is solved Associativity is poor between the copper alloy set and base steel of existing steel-based copper alloy turbine, there is slag inclusion between composite surface, unsound to ask Topic.

The technical solution of the utility model is: steel-based copper alloy turbine, including base steel, copper alloy set and bolt；Base steel is in set Cartridge type, outer wall are equipped with the first annular boss and the second annular convex platform extended radially, and first annular boss is equipped with more A keyhole A, keyhole A penetrate through the both sides of the face of first annular boss, and the second annular convex platform is equipped with multiple keyhole B, keyhole B perforation The both sides of the face of second annular convex platform；Copper alloy set is set on base steel periphery, and is located at first annular boss and the second ring Between shape boss, periphery is equipped with turbo blade；Bolt is located in keyhole A and keyhole B, and is covered and be integrally formed with copper alloy.

The further technical solution of the utility model is: the periphery of base steel is equipped with a plurality of V-arrangement being criss-cross arranged Slot；Correspondingly, the inner wall of copper alloy set is equipped with a plurality of fin to match with the V-shaped groove.

Further technical solution is the utility model: the groove width and groove depth of V-shaped groove are 3mm.

The further technical solution of the utility model is: the first annular boss and the second annular convex platform of base steel exist respectively The outer edge of inner side end (side end face i.e. relative to each other) is equipped with annular chamfer.

The further technical solution of the utility model is: the size of annular chamfer is 45 ° × 10mm.

The utility model has the advantages that compared with prior art

1, base steel and copper alloy set are firmly combined, fricton-tight between the faying face of the two, loosen.

Realize that structure and the principle of the beneficial effect are as follows:

The periphery of A, base steel are equipped with a plurality of V-shaped groove being criss-cross arranged, correspondingly, on the inner wall of copper alloy set Equipped with a plurality of fin to match with the V-shaped groove, can prevent from sliding between base steel and copper alloy set, and enhance the two The intensity of bond area and copper alloy set.

B, the first annular boss of base steel and the second annular convex platform fall in the outer edge of inner side end equipped with annular respectively Angle, after the completion of casting, which can allow copper alloy according to the direction of fillet surface to contract, and then reach control Copper alloy shrinkage direction makes base steel and copper alloy cover the finer and close effect of composite layer.

C, the periphery to base steel between first annular boss and the second annular convex platform carries out copper plating treatment, can prevent from inlaying Embedding surface oxidation keeps the contact surface of copper alloy and base steel wider, and then improves the adhesive force of copper alloy.

2, after liquid copper alloy being perfused into copper alloy set casting die, the multistage heat preservation lowered paragraph by paragraph using temperature is cold But mode can be such that base steel and copper alloy covers uniformly cooling, shrink basic synchronization, copper alloy in base steel and copper alloy set cooling procedure Solidification is controllable, is conducive to carry out moisturizing in time, thus avoid base steel and copper alloy because convergent-divergent coefficient and radiating rate are different, There is the cracking of copper alloy and loose.Meanwhile this multistage type of cooling makes copper alloy have the effect of a secondary contraction, organizes Density is more preferable, and adhesive force is bigger, and the combination effect of base steel is more preferable.

The utility model is further described below in conjunction with figure and embodiment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the A-A cross-sectional view of Fig. 1；

Fig. 3 is the structural schematic diagram of base steel；

Fig. 4 is the mated condition schematic diagram that base steel and copper alloy cover casting die；

Fig. 5 is the structural schematic diagram that copper alloy covers casting die；

Fig. 6 is the B-B cross-sectional view of Fig. 5.

Specific embodiment

Embodiment 1:

As shown in Figure 1-3, steel-based copper alloy turbine, including base steel 1, copper alloy set 2 and bolt 3.

Base steel 1 is in socket type, and outer wall is equipped with the first annular boss 11 and the second annular convex platform 12 extended radially, Multiple keyhole A are evenly equipped on first annular boss 11, keyhole A penetrates through the both sides of the face of first annular boss 11, the second convex annular Multiple keyhole B are evenly equipped on platform 12, keyhole B penetrates through the both sides of the face of the second annular convex platform 12.

Copper alloy set 2 is set on 1 periphery of base steel, and be located at first annular boss 11 and the second annular convex platform 12 it Between, periphery is equipped with turbo blade 21.

Bolt 3 is located in keyhole A and keyhole B, and is integrally formed with copper alloy set 2.

It is preferred that the periphery of base steel 1 is equipped with a plurality of V-shaped groove 13 being criss-cross arranged, the groove width and groove depth of V-shaped groove 13 It is 3mm.Correspondingly, the inner wall of copper alloy set 2 is equipped with a plurality of fin 22 to match with the V-shaped groove.

It is preferred that the first annular boss 11 of base steel 1 and the second annular convex platform 12 are set in the outer edge of inner side end respectively There is annular chamfer 14, the size of annular chamfer 14 is 45 ° × 10mm.

The method for preparing above-mentioned steel-based copper alloy turbine, steps are as follows,

S01, manufacture base steel are stand-by；

S02 carries out copper plating treatment to periphery of the base steel between first annular boss and the second annular convex platform；

Base steel 1 is packed into copper alloy set casting die by S03, forms one between base steel and copper alloy set casting die Annular mold cavity 4 (referring to Fig. 4) is perfused by the casting gate 51 that copper alloy covers casting die into the annular mold cavity 4 Liquid copper alloy；

After the completion of perfusion, base steel and copper alloy set casting die are put into holding furnace together by S04, first will be in holding furnace Temperature is adjusted to 800 DEG C, keeps after five minutes, then be adjusted to 450 °C, is kept for 10 minutes, is then adjusted to 200 DEG C, is kept for 5 minutes, finally Base steel and copper alloy set casting die are taken out together, at normal temperature natural cooling.

The manufacturing method of base steel is as follows:

A, base steel blank is cast；

B, machine is carried out to base steel blank to add to obtain base steel semi-finished product；

Is carried out to base steel blank the step of machine adds as follows:

1, criss-cross V is processed on the periphery between the first annular boss of base steel blank and the second annular convex platform Shape slot, groove depth and groove width are 3mm；

2, in the inner side end outer edge of the first annular boss of base steel blank and the inner side end of the second annular convex platform Outer edge distinguishes the annular chamfer that processing dimension is 45 ° × 10mm；

3, bore keyhole A and keyhole B respectively on the first annular boss of base steel blank and the second annular convex platform, keyhole A and Keyhole B is distributed in a ring, obtains base steel semi-finished product；

4, base steel semi-finished product are put into the sodium hydroxide solution of 20-60g/L concentration, 80-100 °C at a temperature of impregnate 20-40 seconds, caustic wash process is completed, to remove the oil stain on base steel semi-finished product；

5, the base steel semi-finished product after alkali cleaning are put into the hydrochloric acid solution of 5-10%, 30-60 °C at a temperature of impregnate 10- It 30 seconds, is then placed in the clear water reserviors of flowing and removes acid, complete pickling process to remove the rusty stain on base steel blank and obtain base steel Finished product.

As seen in figs. 5-6, the copper alloy covers casting die, and the mold 5 including being in socket type, mold 5 is equipped with Radially outwardly projecting annular step 52, the inner hole of mold 5 are equipped with a ring annular groove 53, mould at annular step 52 Specific 5 are equipped with the casting gate 51 for being connected to annular groove 53.

It is preferred that mold 5 is split type structure comprising the first fission 54 and the second fission being connected seperated with first 55。

Claims (5)

1. steel-based copper alloy turbine, it is characterized in that: including base steel (1), copper alloy set (2) and bolt (3)；Base steel (1) is in socket type, Its outer wall is equipped with the first annular boss (11) and the second annular convex platform (12) that extend radially, on first annular boss (11) Equipped with multiple keyhole A, keyhole A penetrates through the both sides of the face of first annular boss (11), and the second annular convex platform (12) is equipped with multiple Keyhole B, keyhole B penetrate through the both sides of the face of the second annular convex platform (12)；Copper alloy set (2) is set on base steel (1) periphery, and Between first annular boss (11) and the second annular convex platform (12), periphery is equipped with turbo blade (21)；Bolt (3) is set It is integrally formed in keyhole A and keyhole B, and with copper alloy set (2).

2. steel-based copper alloy turbine as described in claim 1, it is characterized in that: the periphery of base steel (1) be equipped with it is a plurality of in length and breadth The V-shaped groove (13) of interlaced arrangement；Correspondingly, the inner wall of copper alloy set (2) matches equipped with a plurality of with the V-shaped groove (13) Fin (22).

3. steel-based copper alloy turbine as claimed in claim 2, it is characterized in that: the groove width and groove depth of V-shaped groove (13) are 3mm.

4. steel-based copper alloy turbine as claimed in claim 2 or claim 3, it is characterized in that: the first annular boss (11) of base steel (1) and Second annular convex platform (12) is equipped with annular chamfer (14) in the outer edge of inner side end respectively.

5. steel-based copper alloy turbine as claimed in claim 4, it is characterized in that: the size of annular chamfer (14) is 45 ° × 10mm.