CN205625560U - Screw rod and stock machine - Google Patents

Abstract

The utility model provides a screw rod and stock machine, wherein, the screw rod includes the screw rod base member, and the screw rod matrix surface includes handles the protective layer that forms through the QPQ salt bath, and the protective layer includes endurance layer, wearing layer and oxide film layer, and endurance layer, wearing layer and oxide film layer set gradually on the screw rod matrix surface. The utility model provides a screw rod, the screw rod matrix surface includes handles the protective layer that forms through the QPQ salt bath, the protective layer includes the endurance layer, wearing layer and oxide film layer, and endurance layer, wearing layer and oxide film layer set gradually on the screw rod matrix surface, this surface with regard to making the screw rod base member has had high endurance, wear -resisting and resistance to corrosion, it is difficult by wearing and tearing and oxidation when making it use, thereby with the condition emergence of fruit juice emergence oxidation with fruit juice entering screw rod surface when having avoided using the stock machine of this screw rod to squeeze fruit juice, the life of screw rod had both been improved, the clean health of fruit juice has also been guaranteed, can satisfy user's user demand.

Description

Screw rod and natural juice machine

Technical field

This utility model relates to household electrical appliance technical field, in particular to a kind of screw rod and have this spiral shell The natural juice machine of bar.

Background technology

At present, the equipment such as existing juice extractor or natural juice machine, main by the screw rod high speed to food materials such as fruit The modes such as extruding, abrasion are squeezed the juice.Existing screw rod uses rustless steel or pottery as matrix material mostly Matter, but, after the screw rod of stainless steel uses certain time, cause the iron atom on its surface easily with fruit The materials such as acid react and aoxidize, and reduce the service life of screw rod, and the iron atom of oxidation state is with fresh Fruit juice mixes, and then fruit juice can be caused to be susceptible to oxidation, and these ferrum can be dissolved in fruit acid, causes Squeezing fruit juice out contains the taste of rustless steel or rust, reduces the satisfaction of user, meanwhile, pottery The loose porous characteristic that screw rod exists because of ceramic material self, fruit juice etc. easily immerses these trickle holes In, causing its surface not easy cleaning, pottery screw rod also becomes to be easier to be colored and then pollute the later stage and squeezes out Fresh juices, can not meet the use demand of client, reduce the mouthfeel of fruit juice.

Utility model content

In order to solve at least one above-mentioned technical problem, a purpose of the present utility model is to provide a kind of high Hardness, high abrasion, anticorrosive property are good, and are difficult to the screw rod being aoxidized by fruit juice and polluting.

Another purpose of the present utility model is to provide a kind of natural juice machine with above-mentioned screw rod.

To achieve these goals, the embodiment of this utility model first aspect provides a kind of screw rod, including Screw rod matrix, described screw rod matrix surface includes the protective layer formed by QPQ salt bath process, described guarantor Sheath includes endurance layer, wearing layer and oxidation film layer, and described endurance layer, described wearing layer and described Oxidation film layer is successively set on described screw rod matrix surface.

The screw rod that this utility model provides, screw rod matrix surface includes the protection formed by QPQ salt bath process Layer, protective layer includes endurance layer, wearing layer and oxidation film layer, and endurance layer, wearing layer and oxide-film Layer is successively set on screw rod matrix surface, and this just makes the surface of screw rod matrix be provided with high endurance, wear-resisting And anticorrosive property so that it is it is difficult to during use be worn and aoxidize, thus avoids the natural juice machine using this screw rod The situation occurring oxidation and fruit juice to enter screw surface with fruit juice during press juice occurs, and has both improve screw rod In service life, also ensure that the clean hygiene of fruit juice, it is possible to meet the use demand of user.

It should be noted that " QPQ " is the abbreviation of English " Quench-Pol ish-Quench ", original meaning is Quenching-polishing-quenching, it is after having done Quench-Polish-Quench technology, in order to reduce the roughness of surface of the work, Nitrogenizing in salt bath and oxidation two kinds of salt baths of salt bath again and carry out processing workpiece, this technology both can make workpiece hardly Deformation, meanwhile, can increase substantially again the wearability of metal surface, corrosion stability, be a kind of new metal watch Surface strengthening modification technology, this technology can realize the compound of nitriding operation and oxidation operation, nitride and oxidation Thing compound, wearability and corrosion stability are combined, heat treatment technics and aseptic technic compound, use this technology The screw rod using common iron to prepare is carried out surface process, the surface property of screw rod can be obviously improved, greatly Postpone its service life greatly.

It addition, the screw rod in above-described embodiment of this utility model offer can also have following supplementary technology spy Levy:

In technique scheme, described wearing layer is that ε phase nitrogenizes iron layer.

In this technical scheme, wearing layer is that ε phase nitrogenizes iron layer, and it mainly comprises as ε phase Fe (2-3) N, is the Reliable guarantee improving wearability, and meanwhile, its corrosion stability is the highest, improves the resistance to of screw rod Mill property and corrosion stability.

In any of the above-described technical scheme, described oxidation film layer is magnetite layer.

In this technical scheme, oxidation film layer is magnetite layer, and the oxide-film that ferroso-ferric oxide is formed exists Under the conditions of air, neutral salt spray, highly basic, weak acid etc., all there is the highest corrosion resistance, improve the anti-of screw rod Corrosive nature, meanwhile, the oxidation film layer formed in conjunction with ferroso-ferric oxide on the basis of ε phase nitrogenizes iron layer, The wearability and the antiseptic property that make screw rod are more preferable.

In any of the above-described technical scheme, described endurance layer is the expansion that nitrogen solid solution in α phase ferrum is formed Dissipate layer.

In this technical scheme, endurance layer is arranged on the surface of screw rod matrix, and meanwhile, endurance layer is The diffusion layer that nitrogen solid solution in α phase ferrum is formed, after immersing nitridation salt bath due to screw rod matrix, cyanate radical Decompose the N (nitrogen) of generation, C (carbon) atom can form high N gesture and C gesture at surface of the work, because of N Atomic radius is only the half of Fe atomic radius, and the radius of C atom is less, so N, C atom is permissible Being diffused in the dot matrix gap of Fe atom, high concentration N, C atom internally spread, and make nitrogen at α The solid solution of Xiang Tiezhong, improves the fatigue strength of screw rod, adds the hardness of screw rod.

In any of the above-described technical scheme, the thickness range of described endurance layer is 400 μm～800 μm.

In this technical scheme, the thickness range of endurance layer is 400 μm～800 μm, it is possible to ensure to compose Give the endurance life of screw rod matrix surface, and then ensure that the hardness of screw rod, improve the service life of product.

In any of the above-described technical scheme, the thickness range of described oxidation film layer is 2 μm～5 μm.

In this technical scheme, the thickness range of oxidation film layer is 2 μm～5 μm, allows to ensure oxidation Film layer plays the performance of anticorrosive property, and the oxidation film layer produced is easier, and then ensure that the anti-of screw rod Erosion property.

In any of the above-described technical scheme, the thickness range of described wearing layer is 10 μm～40 μm.

Further, the thickness range of described wearing layer is 15 μm～20 μm.

In this technical scheme, the thickness range of wearing layer is 10 μm～40 μm, it is ensured that anti-wear performance, Further the thickness range of wearing layer is 15 μm～20 μm, can make screw surface hardness through peroxidating Reach the corrosion resistant compound layer of high abrasion of 600-800HV, improve the anti-wear performance of wearing layer.

In any of the above-described technical scheme, described screw rod matrix forged by structural steel, tool steel or cast iron or Die casting is made.

In this technical scheme, the purchase cost of structural steel, tool steel and cast iron is relatively low, and passes through QPQ After Quench-Polish-Quench technology technology so that it is the wearability on surface and etch resistant properties can be significantly improved.

In any of the above-described technical scheme, the surface microhardness scope of described screw rod is 500HV～1000HV.

In this technical scheme, the surface microhardness scope of screw rod is 500HV～1000HV, makes screw rod Wearability and the antiseptic property on surface are more significantly, meanwhile, also ensure that the hardness of screw rod.

The embodiment of this utility model second aspect provides a kind of natural juice machine, including any of the above-described technical scheme institute The screw rod stated.

The natural juice machine that the embodiment of this utility model second aspect provides is provided by this utility model first The screw rod that the embodiment of aspect provides, thus there are all beneficial effects that described screw rod is had, at this not Repeat again.

Additional aspect of the present utility model and advantage will become obvious in following description part, or by this The practice of utility model is recognized.

Accompanying drawing explanation

Embodiment is retouched by above-mentioned and/or additional aspect of the present utility model and advantage from combining accompanying drawings below Will be apparent from easy to understand in stating, wherein:

Fig. 1 is the structural representation of screw rod described in the utility model:

Fig. 2 is the plan structure schematic diagram of Fig. 1；

Fig. 3 be in Fig. 2 A-A to sectional structure schematic diagram；

Fig. 4 is the broken section structural representation of screw rod described in the utility model.

Wherein, in Fig. 1 to Fig. 4, corresponding relation between reference and component names is:

100 screw rods, 10 screw rod matrixes, 20 protective layers, 21 endurance layers, 22 wearing layers, 23 oxide-films Layer.

Detailed description of the invention

In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with attached This utility model is further described in detail by figure and detailed description of the invention.It should be noted that not In the case of conflict, the feature in embodiments herein and embodiment can be mutually combined.

Elaborate a lot of detail in the following description so that fully understanding this utility model, but, This utility model can be implemented to use other to be different from other modes described here, therefore, and this practicality Novel protection domain is not limited by following public specific embodiment.

Describe according to screw rod 100 described in some embodiments of this utility model referring to Fig. 1 to Fig. 4.

As shown in Figures 1 to 4, the screw rod 100 that the embodiment of this utility model first aspect provides, including Screw rod matrix 10, screw rod matrix 10 surface includes the protective layer 20 formed by QPQ salt bath process, as Shown in Fig. 4, protective layer 20 includes endurance layer 21, wearing layer 22 and oxidation film layer 23, and endurance Layer 21, wearing layer 22 and oxidation film layer 23 are successively set on screw rod matrix 10 surface.

The screw rod 100 that this utility model provides, screw rod matrix 10 surface includes processing shape by QPQ salt bath The protective layer 20 become, protective layer 20 includes endurance layer 21, wearing layer 22 and oxidation film layer 23, and resistance to Fatigue layer 21, wearing layer 22 and oxidation film layer 23 are successively set on screw rod matrix 10 surface, and this just makes The surface of screw rod matrix 10 is provided with high endurance, wear-resisting and anticorrosive property so that it is be difficult to during use be ground Damage and oxidation, thus avoid use this screw rod 100 natural juice machine press juice time with fruit juice occur oxidation and Fruit juice enters the situation on screw rod 100 surface and occurs, and had both improve the service life of screw rod 100, and also ensure that The clean hygiene of fruit juice, it is possible to meet the use demand of user.

It should be noted that " QPQ " is the abbreviation of English " Quench-Polish-Quench ", original meaning is for quenching Fire-polishing-quenching, it is after having done Quench-Polish-Quench technology, in order to reduce the roughness of surface of the work, Nitrogenizing in salt bath and oxidation two kinds of salt baths of salt bath again and carry out processing workpiece, this technology both can make workpiece hardly Deformation, meanwhile, can increase substantially again the wearability of metal surface, corrosion stability, be a kind of new metal watch Surface strengthening modification technology, this technology can realize the compound of nitriding operation and oxidation operation, nitride and oxidation Thing compound, wearability and corrosion stability are combined, heat treatment technics and aseptic technic compound, use this technology The screw rod 100 using common iron to prepare is carried out surface process, the surface of screw rod 100 can be obviously improved Performance, postpones its service life significantly；Wherein, the shape of screw rod 100 as shown in Figure 1, Figure 2 and Figure 3, This is a kind of planform of screw rod 100, for a person skilled in the art, the shape of screw rod 100 Shape may belong to arbitrary shape, and other shapes of screw rod 100 is also within the protection domain of the application.

In an embodiment of the present utility model, wearing layer 22 nitrogenizes iron layer for ε phase.

In this embodiment, wearing layer 22 nitrogenizes iron layer for ε phase, and it mainly comprises as ε phase Fe (2-3) N, is the Reliable guarantee improving wearability, and meanwhile, its corrosion stability is the highest, improves screw rod 100 Wearability and corrosion stability.

In an embodiment of the present utility model, oxidation film layer 23 is magnetite layer.

In this embodiment, oxidation film layer 23 is magnetite layer, the oxide-film that ferroso-ferric oxide is formed Under the conditions of air, neutral salt spray, highly basic, weak acid etc., all there is the highest corrosion resistance, improve screw rod The Corrosion Protection of 100, is formed in conjunction with ferroso-ferric oxide on the basis of ε phase nitrogenizes iron layer meanwhile Oxidation film layer 23, makes the wearability of screw rod 100 and antiseptic property more preferable.

In an embodiment of the present utility model, endurance layer 21 is the nitrogen solid solution bodily form in α phase ferrum The diffusion layer become.

In this embodiment, endurance layer 21 is arranged on the surface of screw rod matrix 10, meanwhile, and endurance Layer 21 is the diffusion layer that nitrogen solid solution in α phase ferrum is formed, owing to screw rod matrix 10 immerses nitridation salt bath After, cyanate radical decompose produce N (nitrogen), C (carbon) atom can surface of the work formed high N gesture and C gesture, because atom N radius is only the half of Fe atomic radius, and the radius of C atom is less, so N, C atom can be diffused in the dot matrix gap of Fe atom, and high concentration N, C atom internally spread, Make nitrogen solid solution in α phase ferrum, improve the fatigue strength of screw rod 100, add the hard of screw rod 100 Degree.

In an embodiment of the present utility model, the thickness range of endurance layer 21 is 400 μm～800 μm。

In this embodiment, the thickness range of endurance layer 21 is 400 μm～800 μm, it is possible to ensure to compose Give the endurance life on screw rod matrix 10 surface, and then ensure that the hardness of screw rod 100, improve product Service life.

In an embodiment of the present utility model, the thickness range of oxidation film layer 23 is 2 μm～5 μm.

In this embodiment, the thickness range of oxidation film layer 23 is 2 μm～5 μm, allows to ensure oxidation Film layer 23 plays the performance of anticorrosive property, and the oxidation film layer 23 produced is easier, and then ensure that spiral shell The corrosion stability of bar 100.

In an embodiment of the present utility model, the thickness range of wearing layer 22 is 10 μm～40 μm.

Further, the thickness range of wearing layer 22 is 15 μm～20 μm.

In this embodiment, the thickness range of wearing layer 22 is 10 μm～40 μm, it is ensured that anti-wear performance, Further the thickness range of wearing layer 22 is 15 μm～20 μm, can make screw rod 100 through peroxidating Case hardness reaches the corrosion resistant compound layer of high abrasion of 600-800HV, improves the resistance to of wearing layer 22 Mill performance.

In an embodiment of the present utility model, screw rod matrix 10 is by structural steel, tool steel or cast iron Forging or die casting are made.

In this embodiment, the purchase cost of structural steel, tool steel and cast iron is relatively low, and by QPQ salt After bath composite treatment technology so that it is the wearability on surface and etch resistant properties can be significantly improved.

In an embodiment of the present utility model, the surface microhardness scope of screw rod 100 is 500HV～1000HV.

In this embodiment, the surface microhardness scope of screw rod 100 is 500HV～1000HV, makes spiral shell Wearability and the antiseptic property on bar 100 surface are more significantly, meanwhile, also ensure that the hardness of screw rod 100.

In a specific embodiment of the present utility model, the processing method on screw rod 100 surface is as follows:

Step 1, the screw rod matrix 10 prepared by the low-alloy steel 40Cr of forging carries out degreasing degreasing process；

Step 2, by this screw rod 100 the pre-heat treatment 20～30min under the conditions of 350～400 DEG C；

Step 3, is being in the melted saline solution of 32%～35% containing cyanate radical content by this screw rod 100, in 520 ± 10 DEG C Operating temperature under with salt bath liquid in process 110～120min；

Step 4, aoxidizes 15～20min by this screw rod 100 at 360～380 DEG C；

Step 5, cleans 3～5min by this screw rod 100 distilled water；

The final surface alloying layer thickness obtained is 10～15 μm, the high abrasion corrosion resistant of hardness about 550～600HV The compound layer of erosion, i.e. wearing layer 22.

In another specific embodiment of the present utility model, the processing method on screw rod 100 surface is as follows:

Step 1, the screw rod 100 prepared by the low-alloy steel 40Cr of forging carries out degreasing degreasing process；

Step 2, by this screw rod 100 the pre-heat treatment 10～20min under the conditions of 350～400 DEG C；

Step 3, is being in the melted saline solution of 35%～40% containing cyanate radical content by this screw rod 100, in 160～180min are processed with salt bath liquid under the operating temperature of 570 ± 10 DEG C；

Step 4, aoxidizes 20～25min by this screw rod 100 at 360～380 DEG C；

Step 5, cleans 3～5min by this screw rod 100 distilled water；

The final surface alloying layer thickness obtained is about 15～20 μm, and the height that case hardness reaches 600～800HV is resistance to Grind corrosion resistant compound layer, i.e. wearing layer 22.

The embodiment of this utility model second aspect provides a kind of natural juice machine, including any of the above-described technical scheme institute The screw rod 100 stated.

The natural juice machine that the embodiment of this utility model second aspect provides is provided by this utility model first The screw rod 100 that the embodiment of aspect provides, thus there are all beneficial effects that described screw rod 100 is had, Do not repeat them here.

In sum, the screw rod that this utility model provides, screw rod matrix surface includes being processed by QPQ salt bath The protective layer formed, protective layer includes endurance layer, wearing layer and oxidation film layer, and endurance layer, wear-resisting Layer and oxidation film layer are successively set on screw rod matrix surface, and it is high resistance to that this just makes the surface of screw rod matrix be provided with Tired, wear-resisting and anticorrosive property so that it is be difficult to during use be worn and aoxidize, thus avoid this spiral shell of use Occur with fruit juice oxidation and fruit juice to enter the situation generation of screw surface during the natural juice machine press juice of bar, both carried In the high service life of screw rod, also ensure that the clean hygiene of fruit juice, it is possible to meet the use demand of user.

In this utility model, term " first ", " second " are only used for the purpose described, and are not understood that For instruction or hint relative importance；Term " multiple " then refers to two or more, unless otherwise clearly Restriction.For the ordinary skill in the art, can understand that above-mentioned term exists as the case may be Concrete meaning in this utility model.

In the description of this specification, term " embodiment ", " some embodiments ", " specific embodiment " Deng description means to combine this embodiment or example describes specific features, structure, material or feature be contained in In at least one embodiment of the present utility model or example.In this manual, schematic to above-mentioned term Statement is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material Or feature can combine in any one or more embodiments or example in an appropriate manner.

The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, For a person skilled in the art, this utility model can have various modifications and variations.All in this practicality Within novel spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this Within the protection domain of utility model.

Claims (11)

1. a screw rod, it is characterised in that include that screw rod matrix, described screw rod matrix surface include passing through The protective layer that QPQ salt bath process is formed, described protective layer includes endurance layer, wearing layer and oxidation film layer, And described endurance layer, described wearing layer and described oxidation film layer are successively set on described screw rod matrix surface On.

Screw rod the most according to claim 1, it is characterised in that

Described wearing layer is that ε phase nitrogenizes iron layer.

Screw rod the most according to claim 1, it is characterised in that

Described oxidation film layer is magnetite layer.

Screw rod the most according to claim 1, it is characterised in that

Described endurance layer is the diffusion layer that nitrogen solid solution in α phase ferrum is formed.

Screw rod the most according to claim 1, it is characterised in that

The thickness range of described endurance layer is 400 μm～800 μm.

Screw rod the most according to claim 1, it is characterised in that

The thickness range of described oxidation film layer is 2 μm～5 μm.

Screw rod the most according to claim 1, it is characterised in that

The thickness range of described wearing layer is 10 μm～40 μm.

Screw rod the most according to claim 7, it is characterised in that

The thickness range of described wearing layer is 15 μm～20 μm.

Screw rod the most according to any one of claim 1 to 8, it is characterised in that

Described screw rod matrix is forged by structural steel, tool steel or cast iron or die casting is made.

Screw rod the most according to any one of claim 1 to 8, it is characterised in that

The surface microhardness scope of described screw rod is 500HV～1000HV.

11. 1 kinds of natural juice machines, it is characterised in that include the screw rod according to any one of claim 1 to 10.