Background technology
The logical part of pipe is pipe fitting important in pipeline engineering, common are tee pipe fitting, four-way pipe fitting, U-shaped pipe fitting etc.The logical part of pipe is of many uses, especially indispensable in industries such as refrigeration, chemical industry, building and food in the logical engineering field of pipe.
The production of the logical part of pipe can be by the process of casting, forging, welding and extruding, wherein, the logical part of the pipe that casting, forging and welding obtain does not all meet the requirement of accurate pipe fitting, the logical part of extruded tube is in macrobending stressed zone thing weld seam, shoulder compression and thickening, improved its intensity, and error is little, therefore, the application of the logical part of extruded tube in the preparation of the accurate pipe fitting of prior art is more and more extensive.
Extruding is according to the metal plastic deformation principle, utilizes and is contained in the mould on forcing press, and under sizable extruding force effect, metal produces plastic deformation in die cavity, the technical process that makes blank become required form, size and have the part of certain performance.The technological approaches of manufacturing the logical part of pipe roughly is divided into cold extrusion and the large class of hot extrusion two, wherein so that cold extruding technique is with fastest developing speed cheaply.In the prior art, cold extruding technique mainly contains oiling extruding, water filling extruding, fills with plumbous extruding and powder filling extruding etc.Wherein oiling or water filling extruding all because technical difficulty is large, equipment cost is high, extrude the factor slower developments such as length is undesirable.And fill with plumbous extruding because of its extrusion modling dimensional standard, many favorable factors such as cost is low, cause still take in existing technology filling with plumbous extruding as main.But lead is a heavy metal species, human body and environment are had to very large harm, must eliminate.In recent years the powder filling extruding occurred has had new breakthrough to above-mentioned several fashion of extrusion, has effectively overcome conventional art difficult point and environment drawback.But because powder extruding is strict to filling process, existing filling apparatus production capacity efficiency is low, and not yet develops efficient filling apparatus on market, has restricted the powder extrusion technique to promote and large-scale production, demand in enormous quantities that can't satisfying the market.
Filling with plumbous extruding is that the lead under molten state is injected to original pipe, puts into after cooling mould and is pushed.But lead is a heavy metal species, human and environment is caused to very large harm, and filling splicer skill step is more numerous and diverse, comprise sawing sheet, deburring, blow metal fillings, fill with for the first time plumbous, the first dressing mouth of pipe, drill centers, the perforate extruding, amputate cecum, polishing, deleading for the first time, annealing, fill with for the second time plumbous, clear up for the second time the mouth of pipe, swaging, otch, deleading for the second time, deleading, enlarging or reducing, polishing, the acid work flow that waits 20 complexity, wherein, due to after the lead poured into for the first time is squeezed, density increases, if direct swaging, easily squeeze broken tube wall, thereby need deleading, again fill with plumbous, and deleading again, front and back need through twice filling lead, twice deleading, twice cleaning mouth of pipe, the technological process complexity, efficiency is lower.
Summary of the invention
The object of the present invention is to provide the manufacture craft of a kind of filled media for the logical part of extruded tube and the logical part of pipe, filled media provided by the invention is to human body and environmentally friendly, and the manufacture craft that makes the logical part of extruded tube is simple and efficient, is applicable to large-scale industrial production.
The invention provides the filled media of the logical part of a kind of extruded tube, comprise following component:
The urea of 45wt%~90wt%;
The potassium chloride of 5wt%~50wt%;
The water of 1wt%~10wt%.
Preferably, the urea that comprises 50wt%~85wt%.
Preferably, the potassium chloride that comprises 10wt%~45wt%.
Preferably, the water that comprises 3wt%~8wt%.
The present invention also provides the manufacture craft of the logical part of a kind of pipe, comprises the following steps:
The described filled media of technique scheme is carried out to the first melting, obtain liquid filled media;
The filled media of described liquid state is placed in to original pipe, will be filled with original pipe extrusion modling in mould of described filled media after cooling;
Filled media in pipe fitting after extrusion modling is carried out to the second melting and remove, obtain managing logical part.
Preferably, the temperature of described the first melting is 100 ℃~800 ℃;
The temperature of described the second melting is 100 ℃~800 ℃.
Preferably, the material of described original pipe is copper, aluminium, low-carbon (LC) steel or stainless steel.
Preferably, described original pipe is straight-through pipe fitting.
Preferably, the logical part of described pipe is the logical part of many flow-throughs pipe or the logical part of U-shaped pipe.
Preferably, the filled media in the pipe fitting after extrusion modling being carried out to the second melting removes rear further comprising the steps of:
The pipe fitting of removing filled media is carried out to blank pipe and prick curvedly, obtain managing logical part.
The invention provides the filled media of the logical part of a kind of extruded tube and the manufacture craft of the logical part of pipe, the filled media for the logical part of extruded tube provided by the invention comprises the urea of following component: 45wt%~90wt%; The potassium chloride of 5wt%~50wt%; The water of 1wt%~10wt%.The invention provides a kind of filled media for the logical part of extruded tube, the present invention carries out the first melting by filled media and is placed in original pipe, to be filled with original pipe extrusion modling in mould of described filled media after cooling, filled media in pipe fitting after extrusion modling is carried out to the second melting and remove, obtain managing logical part.Filled media provided by the invention is filling simple and convenient, is easy to remove, and with the disclosed filling of prior art splicer skill, compares, and without through repeatedly filling with plumbous, the process of deleading repeatedly, can obtain managing logical part.The manufacture craft of the logical part of pipe provided by the invention is simple, efficient.And filled media provided by the invention all is safe from harm to human body and environment, health environment-friendly, be beneficial to its large-scale application.
The specific embodiment
The invention provides the filled media of the logical part of a kind of extruded tube, comprise following component:
The urea of 45wt%~90wt%;
The potassium chloride of 5wt%~50wt%;
The water of 1wt%~10wt%.
The invention provides a kind of filled media for the logical part of extruded tube, the present invention carries out the first melting by filled media and is placed in original pipe, to be filled with original pipe extrusion modling in mould of described filled media after cooling, filled media in pipe fitting after extrusion modling is carried out to the second melting and remove, obtain managing logical part.Filled media provided by the invention is filling simple and convenient, is easy to remove, and with the disclosed filling of prior art splicer skill, compares, and without through repeatedly filling with plumbous, the process of deleading repeatedly, can obtain managing logical part.The manufacture craft of the logical part of pipe provided by the invention is simple, efficient.And filled media provided by the invention all is safe from harm to human body and environment, health environment-friendly, be beneficial to its large-scale application.
Filled media for the logical part of extruded tube provided by the invention comprises and the urea of 45wt%~90wt% is preferably 50wt%~85wt% that more preferably 60wt%~80wt%, most preferably be 65wt%~75wt%.The present invention does not have special restriction to source and the kind of described urea, adopts urea well known to those skilled in the art to get final product.
Filled media for the logical part of extruded tube provided by the invention comprises and the potassium chloride of 5wt%~50wt% is preferably 10wt%~45wt% that more preferably 15wt%~40wt%, most preferably be 20wt%~35wt%.The present invention does not have special restriction to kind and the source of described potassium chloride, adopts potassium chloride well known to those skilled in the art to get final product.
Filled media for the logical part of extruded tube provided by the invention, comprise and the water of 1wt%~10wt% be preferably 3wt%~8wt%, more preferably 4wt%~6wt%.The present invention does not have special restriction to the kind of described water and source, adopts water well known to those skilled in the art to get final product, as described in water can be running water, can be also distilled water.
The invention provides the manufacture craft of the logical part of a kind of pipe, comprise the following steps:
The described filled media of technique scheme is carried out to the first melting, obtain liquid filled media;
The filled media of described liquid state is placed in to original pipe, will be filled with original pipe extrusion modling in mould of described filled media after cooling;
Filled media in pipe fitting after extrusion modling is carried out to the second melting and remove, obtain managing logical part.
The present invention carries out the first melting by the filled media described in technique scheme, obtains liquid filled media; The filled media of described liquid state is placed in to original pipe, will be filled with original pipe extrusion modling in mould of described filled media after cooling, then filled media be carried out to the second melting and remove, obtain managing logical part.With the disclosed filling of prior art splicer skill, compare, filled media provided by the invention is filled convenient, is easy to remove, and without through repeatedly filling with the plumbous and process of deleading repeatedly, technique is simple and efficient, be easy to industrial scale production.And filled media provided by the invention is to human body and environment without harm, health environment-friendly, be beneficial to its large-scale application.
The component that the present invention preferably comprises described filled media is mixed, and the mixture obtained is placed in to heating vessel and carries out the first melting, obtains liquid filled media.The present invention does not have special restriction to the type of described heating vessel, adopts heating vessel well known to those skilled in the art to get final product.In the present invention, the temperature of described the first melting is preferably 100 ℃~800 ℃, more preferably 200 ℃~700 ℃, most preferably is 400 ℃~600 ℃.The present invention does not have special restriction to the time of described the first melting, makes described filled media melt to liquid stream shape, be suitable for inserting in original pipe and get final product.
After obtaining liquid filled media, the present invention is placed in original pipe by the filled media of described liquid state, will be filled with original pipe extrusion modling in mould of described filled media after cooling.The present invention preferably adopts auto-filling equipment that the filled media of described liquid state is poured in original pipe, and the filled media of cooling rear described liquid state becomes solid-state again, for the filling to original pipe, then by the extrusion modling in mould of cooled original pipe.The present invention does not have special restriction to described cooling method, adopt cooling technical scheme well known to those skilled in the art to get final product, as adopted the cooling method of nature, those skilled in the art also can improve as required cooling velocity or slow down cooling velocity and carry out cooling to the described original pipe that is filled with filled media; In the present invention, described chilling temperature preferably reaches room temperature, and described room temperature is preferably 15 ℃~40 ℃, more preferably 20 ℃~35 ℃.The present invention does not have special restriction to the kind of described mould, and those skilled in the art can select T-shaped three-way valve mold, Y-type three way type mould, Three-claw type three-way valve mold, U-shaped mould or four-way mould as required.
The present invention does not have special restriction to described auto-filling equipment, adopts the technical scheme of filling filled media well known to those skilled in the art to get final product, as adopted the liquid-filling machine that Bipitch liquid bottle placer that model is RGG2T-1G or model are DY/SYF.The present invention does not have special restriction to equipment and the condition of described extruding, adopt the technical scheme of the logical part of extruded tube well known to those skilled in the art to get final product, as the model that can adopt three emerging hydraulic press factories the to produce extrusion equipment that is the 80-125 ton, in the present invention, the pressure of described extrusion modling is preferably 5MPa~20MPa, more preferably 10MPa~15MPa; The present invention does not have special restriction to the temperature of described extruding, and without rising temperature or reduction temperature, at room temperature extrusion modling gets final product.In the present invention, described extrusion modling preferably completes under an extruding action, and the time of described extrusion modling is preferably 5s~20s, more preferably 10s~15s.Those skilled in the art can manage the shape and size difference of logical part as required, select different extruding conditions, prepare the logical part of pipe, and the present invention does not have special restriction to this.
The present invention does not have special restriction to material and the shape of described original pipe, adopts original pipe well known to those skilled in the art to get final product.In the present invention, described original pipe is preferably straight-through pipe fitting; The material of described original pipe preferably includes copper, aluminium, low-carbon (LC) steel or stainless steel, and those skilled in the art can select the original pipe of unlike material to carry out extrusion modling as required, obtains the logical part of pipe of unlike material.
After completing the extrusion modling to original pipe, the present invention carries out the second melting by the filled media in the pipe fitting after extrusion modling, after liquid filled media is flowed out, obtains managing logical part.The present invention preferably is placed in the pipe fitting after extrusion modling the filled media of molten state, and under the high temperature action of molten state filled media, filled media solid-state in pipe fitting is carried out the second melting, again becomes liquid filled media and flows out.The filled media of molten state described in the present invention is that the described filled media of technique scheme is carried out melting and obtained, and described melt temperature preferably adopts the first melt temperature described above.
In the present invention, for the logical part of T-shaped threeway or four-way type pipe, carry out blank pipe without the pipe fitting to after extrusion modling and prick curvedly, also just not there will be phenomenons such as pricking in curved process the pipe fitting cracking, also just without it is carried out to tempering.After extrusion modling, adopt the method for the described removal filled media of technique scheme, can obtain the logical part of pipe needed after the filled media in pipe fitting is removed.
In the present invention, for the logical part of the U-shaped pipe obtained, the logical part of Y-piece or the logical part of Three-claw type three-way pipe, the logical part of the pipe that need to obtain carries out blank pipe and pricks curved.The present invention, after completing the extrusion modling process, preferably carries out the pipe fitting obtained blank pipe and pricks curvedly, obtains managing logical part.The present invention preferably pricks before curved and carries out tempering described pipe fitting being carried out to blank pipe.The present invention does not have special restriction to the method for described tempering, adopts the technical scheme of tempering well known to those skilled in the art to get final product.In the present invention, in filled media process in described removal pipe fitting, pipe fitting after extrusion modling is placed in to the melting filled media, under the high temperature action of described melting filled media, not only make filled media solid-state in pipe fitting become the liquid pipe fitting that flows out, completed the tempering to pipe fitting simultaneously, reduced pipe fitting hardness, improved the plasticity of pipe fitting, be conducive to the carrying out of the curved process of follow-up bundle.The present invention pricks the curved special restriction that do not have to described blank pipe, and adopt bending machine well known to those skilled in the art to carry out blank pipe and prick curved getting final product, as adopted model, be the SB-89NC Full-automatic tube bending machine.
In an embodiment of the present invention, adopt difform mould, obtain the logical part of difform pipe, as shown in Fig. 1~4, Fig. 1 is the logical part structural representation of the T-shaped pipe of extruding that the embodiment of the present invention 1 obtains; Fig. 2 is the logical part structural representation of extruding Y-piece that the embodiment of the present invention 2 obtains; Fig. 3 is the logical part structural representation of extruding Three-claw type pipe that the embodiment of the present invention 3 obtains; Fig. 4 is the logical part structural representation of extruding four-way type pipe that the embodiment of the present invention 4 obtains.
The invention provides the manufacture craft of a kind of filled media for the logical part of extruded tube and the logical part of pipe, the filled media for the logical part of extruded tube provided by the invention comprises the urea of following component: 45wt%~90wt%; The potassium chloride of 5wt%~50wt%; The water of 1wt%~10wt%.The invention provides a kind of filled media for the logical part of extruded tube, the present invention carries out the first melting by filled media and is placed in original pipe, to be filled with original pipe extrusion modling in mould of described filled media after cooling, again filled media is carried out to the second melting and remove, obtain managing logical part.Filled media provided by the invention is filling simple and convenient, with the disclosed filling of prior art splicer skill, compares, and without through repeatedly filling with plumbous, the process of deleading repeatedly, can obtain managing logical part, and the manufacture craft of the logical part of pipe provided by the invention is simple, efficient.And filled media provided by the invention all is safe from harm to human body and environment, health environment-friendly, be beneficial to its large-scale application.
In order to further illustrate the present invention, below in conjunction with embodiment, the filled media of the logical part of extruded tube provided by the invention and the manufacture craft of the logical part of pipe are described in detail, but they can not be interpreted as to limiting the scope of the present invention.
In the following embodiments, the extrusion equipment that the model that all adopts automatic liquid filling machine that model is DY/SYF, SB-89NC Full-automatic tube bending machine and three emerging hydraulic press factories to produce is the 80-125 ton.
Embodiment 1
900g urea, 1000g potassium chloride and 100g water are mixed;
The mixture obtained is placed in to heating vessel, carry out heat fused under 800 ℃, until mixture melts to the liquid flow shape fully, with automatic filling machine, filling with liquid mixture into 50 external diameters is Φ 10mm, length is in the 80mm low carbon steel pipe, be placed in etc. the low carbon steel pipe that will be filled with filled media after cooling the mould extrusion modling that T-shaped chamber is Φ 10mm, the pressure of extrusion modling is 5MPa, extrusion time is 20s, pipe fitting after extrusion modling is put into to the filled media of 800 ℃ of high-temperature fusion, solid-state filled media in pipe fitting is subject to high temperature melting, after 5min, solid-state filled media becomes liquid filled media outflow again, obtain T-shaped tee pipe fitting.
As shown in Figure 1, the external diameter of the T-shaped tee pipe fitting that the present embodiment obtains is Φ 10mm to the structure of T-shaped tee pipe fitting, the long 55mm of twoport, the long 20mm of single port.
Embodiment 2
1950g urea, 750g potassium chloride and 300g water are mixed;
The mixture obtained is placed in to heating vessel, carry out heat fused under 500 ℃, until mixture melts to the liquid flow shape fully, with automatic filling machine, filling with liquid mixture into 100 external diameters is in Φ 8mm, the length aluminum pipe that is 100mm, be placed in etc. the aluminum pipe that will be filled with filled media after cooling the mould extrusion modling that the Y die cavity is Φ 8mm, the pressure of extrusion modling is 20MPa, and extrusion time is 5s; Pipe fitting after extrusion modling is put into to the filled media of 500 ℃ of high-temperature fusion, solid-state filled media in pipe fitting is subject to high temperature melting, after 5min, solid-state filled media again becomes liquid filled media and flows out, and at the temperature of the filled media of high-temperature fusion, pipe fitting has completed drawing process; The pipe fitting that completes tempering is curved at the enterprising line space pipe bundle of bending machine, obtain the Y-type three way type pipe fitting.
As shown in Figure 2, the external diameter of the Y-type three way type pipe fitting that the present embodiment obtains is Φ 8mm to the structure of Y-type three way type pipe fitting, and centre-to-centre spacing is 25.4mm, height overall 32.5mm.
Embodiment 3
3000g urea, 960g potassium chloride and 40g water are mixed;
The mixture obtained is placed in to heating vessel, carry out heat fused under 220 ℃, until mixture melts to the liquid flow shape fully, with automatic filling machine, liquid mixture being filled with into 150 external diameters is that Φ 9mm, length are in the 120mm copper pipe, put into etc. the copper pipe that will be filled with filled media after cooling the mould extrusion modling that the three-jaw die cavity is Φ 9mm, the pressure of extrusion modling is 15MPa, and extrusion time is 10s; Pipe fitting after extrusion modling is put into to the filled media of 450 ℃ of high-temperature fusion, solid-state filled media in pipe fitting is subject to high temperature melting, after 5min, solid-state filled media again becomes liquid filled media and flows out, and at the temperature of the filled media of high-temperature fusion, pipe fitting has completed drawing process; The pipe fitting that completes tempering is curved at the enterprising line space pipe bundle of bending machine, obtain the Three-claw type tee pipe fitting.
As shown in Figure 3, the external diameter of the Three-claw type tee pipe fitting that the present embodiment obtains is Φ 9mm to the structure of Three-claw type tee pipe fitting, and centre-to-centre spacing is 22mm, and height is 24mm.
Embodiment 4
4500g urea, 250g potassium chloride and 250g water are mixed;
The mixture obtained is placed in to heating vessel, carry out heat fused under 450 ℃, until mixture melts to the liquid flow shape fully, with automatic filling machine, liquid mixture being filled with into 200 external diameters is that Φ 12, length are in the 150mm stainless steel tube, be placed in etc. the stainless steel tube that will be filled with filled media after cooling the mould extrusion modling that the four-way die cavity is Φ 12mm, the pressure of extrusion modling is 10MPa, and extrusion time is 10s; Pipe fitting after extrusion modling is put into to the filled media of 450 ℃ of high-temperature fusion, the solid-state filled media in pipe fitting is subject to high temperature melting, and after 5min, solid-state filled media becomes liquid filled media outflow again, obtains four-way type pipe fitting.
As shown in Figure 4, the external diameter of the four-way type pipe fitting that the present embodiment obtains is Φ 12mm to the structure of four-way type pipe fitting, the long 45mm of long end twoport, the long 32mm of short end twoport.
As seen from the above embodiment, the invention provides the manufacture craft of a kind of filled media for the logical part of extruded tube and the logical part of pipe, the filled media of the logical part of pipe provided by the invention comprises the urea of following component: 45wt%~90wt%; The potassium chloride of 5wt%~50wt%; The water of 1wt%~10wt%.The invention provides a kind of filled media for the logical part of extruded tube, the present invention carries out the first melting by filled media and is placed in original pipe, to be filled with original pipe extrusion modling in mould of described filled media after cooling, again filled media is carried out to the second melting and remove, obtain managing logical part.Filled media provided by the invention is filling simple and convenient, is easy to remove, and with the disclosed filling of prior art splicer skill, compares, and without through repeatedly filling with plumbous, the process of deleading repeatedly, can obtain managing logical part.The manufacture craft of the logical part of pipe provided by the invention is simple, efficient.And filled media provided by the invention all is safe from harm to human body and environment, health environment-friendly, be beneficial to its large-scale application.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.