CN107206543B - 超声波焊接方法及利用该方法得到的产品 - Google Patents

超声波焊接方法及利用该方法得到的产品 Download PDF

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CN107206543B
CN107206543B CN201680005811.8A CN201680005811A CN107206543B CN 107206543 B CN107206543 B CN 107206543B CN 201680005811 A CN201680005811 A CN 201680005811A CN 107206543 B CN107206543 B CN 107206543B
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welding
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CN107206543A (zh
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A·西罗里尼
M·毛尔
M·亚米恩托
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Co-Op Yuanyuan Manufacturing Workshop
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B29C66/12821—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments
    • B29C66/12822—Stepped joint cross-sections comprising at least one overlap joint-segment comprising at least two overlap joint-segments comprising at least three overlap joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • B29C66/12842—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments comprising at least three butt joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/301—Three-dimensional joints, i.e. the joined area being substantially non-flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/02—Selection of particular materials
    • F04D29/026—Selection of particular materials especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7496—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F05D2230/232—Manufacture essentially without removing material by permanently joining parts together by welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

一种超声波焊接方法，该方法包括以下步骤：准备热塑性材料制成的至少两个构件，将它们布置成相应的连接区以基本配合的方式相互毗邻；在所述连接区处将超声束传输至所述构件中的至少一者；与超声束传输同时，向所述构件施加压力，使它们相互挤压以维持所述连接区相互接触。本发明的特征在于：所述连接区包括相互配合的曲线部；在准备所述构件之前，在所述构件上限定相应的相配合的焊接表面，这样的相配合的焊接表面使得所述曲线部至少部分离散。本发明还涉及利用这种方法制造的产品。

Description

超声波焊接方法及利用该方法得到的产品
技术领域
本发明涉及超声波焊接方法及利用该方法得到的产品。
背景技术
如公知的，超声波焊接是组装塑料制成的部件的常用方法。
实践中，通过向待焊接的部件施加可变法向载荷并借助能以超声频率产生振动的合适装置使一个部件相对于另一部件振动而发生超声波焊接。
由所谓的超声波发生器传递的强烈振动产生热，该热使材料熔化，从而焊接这两个部件。
发明内容
技术问题
然而，该技术的可靠性和正确应用需要以下一系列措施，首要的是所施加的力和振动方向一定要垂直于焊接接头。
因此，如果部件之间的焊接接头沿曲面或异形表面延伸，则超声波技术即使不是不能应用也难以应用。
因此，在这种情况下必须要求助于其他方法，例如摩擦焊接。
摩擦焊接是这样一种技术，部件借助于因待焊接的部件之间的相对运动(例如旋转)而产生的摩擦联合压力的施加而被焊接起来。
然而，摩擦焊接不太精密并且会引起多数应用都不合适的闪光灼伤。
作为另选方案，例如可以求助于激光焊接，借助激光焊接，激光光束熔化材料并产生焊接接头。
然而，激光光束焊接技术复杂而且通常仅能借助于需要高投资成本的机器人来执行。
除此之外，还应当考虑到用激光进行焊接的时间可能过长，相应地成本过高。
本发明的有益效果
本发明的目的在于解决上述问题，从而提供一种超声波焊接方法，该方法即使在连接区包括曲线部时也允许焊接两个或更多个构件。
在该目的的范围内，本发明的具体目标是提供这样一种方法，该方法允许在基本平行于由超声发生器传输的超声束的方向的连接区处进行焊接。
本发明的另一具体目标是提供这样一种方法，该方法允许制造液压泵的扩散器或者由在包括曲线部的连接区处焊接起来的两个或更多个构件制成的任何其它产品。
本发明的另一目标是提供一种确保高度可靠的重复焊接的方法。
本发明的另一目标是提出一种使得能完全开发超声波焊接机的生产潜能的方法。
解决问题的技术方案
该目的、这些目标以及稍后更清楚的其它目标通过一种超声波焊接方法获得，该方法包括以下步骤：
准备由热塑性材料制成的至少两个构件，将它们定位成使相应的连接区以基本配合的方式相互毗邻；
在所述连接区处将超声束传输至所述构件中的至少一者；
与传输超声束的步骤同时，向所述构件施加压力，使它们相互挤压以维持所述连接区相互接触；
其特征在于：
所述连接区包括相匹配的曲线部；
在准备所述构件的步骤之前，所述方法包括在所述构件上形成相匹配的焊接表面的步骤，使得所述曲线部至少部分离散。
根据再一方面，本发明提供一种包括至少两个构件的产品，所述至少两个构件能借助在相应的连接区处传输的超声束焊接起来，所述连接区具有曲线部；其特征在于，所述构件包括相匹配的焊接表面，所述焊接表面使所述曲线部至少部分离散。
附图说明
从根据本发明的超声波焊接方法及利用该方法得到的产品的优选但并非其穷举实施方式的描述将会更清楚其它特征及优点，这些实施方式在附图中以非限制性实施例的方式示出，在附图中：
图1是借助根据本发明的方法得到的一般产品的示意性剖视图；
图2是借助根据本发明的方法得到的液压泵的扩散器的俯视图；
图3是沿图2的平面III-III截取的剖视图；
图4是扩散器的部件的立体图；
图5是前一图的部件的俯视图；
图6是沿图5的平面Ⅳ-Ⅳ截取的剖视图；
图7是扩散器的另一部件的俯视图；
图8是沿图7的平面VIII-VIII截取的剖视图。
具体实施方式
参照附图，本发明涉及用于将待相互组装的热塑性材料制成的构件超声波焊接的方法。更具体地说，构想该方法在至少一个第一构件1和至少一个第二构件2之间执行超声波焊接，所述第一构件和第二构件具有包括相互配合的曲线部的连接区，所述连接区分别用附图标记3、4标示。
根据本发明，所述方法包括在第一构件1和第二构件2上限定相匹配的焊接表面并且使所述焊接表面的曲线部至少部分离散。
方便的是，在执行焊接操作之前，在第一连接区3和第二连接区4分别限定所述焊接表面。
根据优选但非穷举实施方式，焊接表面基本上垂直于执行焊接所用的超声束并构想成中断曲线部的曲率连续性。
在图示实施例中，分别通过多个第一台阶5和多个第二台阶6限定焊接表面。
在具体情况下，这些台阶5彼此毗邻，台阶6也是如此，然而根据再一实施方式，这些台阶也可以间隔开。
实际中，各台阶5包括焊接表面5a和连接表面5b，焊接表面5a基本垂直于焊接用的超声束50。
同样，各台阶6包括焊接表面6a和连接表面6b，焊接表面6a基本垂直于焊接用的超声束50。
在图示实施例中，连接表面5b、6b基本平行于焊接用的超声束50，但是也可不脱离本发明构思地使用不同形状。
方便的是，焊接表面5a与对应的焊接表面6a基本配合，而连接表面5b与对应的连接表面6b基本配合。
应当指出，制出台阶5、6要顾及第一构件1和第二构件2的厚度足以获得可靠的焊接接头。
优选的是，在构件1、2的成型期间提供台阶5、6。
作为另选方案，可通过从连接区3、4去除材料而提供台阶5、6。
一旦已形成台阶5、6，就能执行实际焊接操作，这以布置第一构件1和第二构件2使得台阶5、6彼此毗邻开始；具体地说，焊接表面5a被布置成毗邻对应的焊接表面6a。
此时，借助作为产生超声振动的工具的超声波发生器，超声束基本上在台阶5、6处传输至两个构件1、2中的至少一者。
另一构件方便地插在公知为砧座的定模中。
同时，将压力施加至这两个构件1、2，使它们彼此挤压从而保持台阶5、6相互接触。
要指出非常重要的是，在执行根据本发明的方法的期间，超声束和施加的压力基本垂直于焊接表面5a、6a。
因此，焊接表面5a、6a的存在使得能有效传输超声束及推力，从而确保焊接操作的良好结果。
此外，该布置防止了这两个构件1、2的相互滑移和/或变形。
本发明还涉及通过以上描述并示出的方法获得的产品。
该产品包括借助在各个连接区处传输的超声束焊接的两个以上构件。
根据本发明，这些构件在连接区处包括相应的相匹配的焊接表面，这些焊接表面被构想成使连接区的曲线部至少部分离散。
图2至图8示出了由液压泵的扩散器100构成的产品的实际实施方式。
对于本领域技术人员来说显然的是多个不同产品在不脱离本发明的范围的情况下可具有基本等同的特征。
扩散器100包括第一构件101和第二构件102，第一构件101和第二构件102借助根据本发明的超声波焊接方法结合在一起。
第一构件101包括居中地设置有通孔111并由基本具有二次曲面部的轮廓的第一壁112横向限定的第一主体110。
叶片113从第一壁112延伸并且绕第一主体110的对称轴线成角度地分布。
方便的是，叶片113弯曲而与第二构件102一起形成径向布置的管道。
第二构件102包括大致筒形的第二主体120，该第二主体120居中地设有凹部121，该凹部121容纳第一构件101的至少一部分。
方便的是，凹部121具有与叶片113的包络线大致互补的形状。
实际上，这两个构件101、102旨在以其中叶片113的边缘114与凹部121的表面配合从而限定上述管道的方式相互结合。
根据本发明，第一构件101和第二构件102包括相应的焊接表面，这些焊接表面相互配合，并使这两个构件101、102的连接区的曲线部至少部分离散。
这样的焊接表面分别通过多个毗邻的第一台阶105和多个毗邻的第二台阶106限定。
第一台阶105基本上在叶片113的边缘114处形成，而第二台阶106具有与第一台阶105的图案相配合的图案地设置在凹部121的表面上。
实际上，各个台阶105包括焊接表面105a及连接表面105b，焊接表面105a基本平行于第一主体110的基部。
同样地，各个台阶106包括焊接表面106a及连接表面106b，焊接表面106a基本平行于第二主体120的基部。
方便的是，在各个台阶105的焊接表面105a处，存在突起115，在焊接期间突起115的任务是集中由超声波发生器提供的能量。
作为另选方案，突起可形成在各个台阶106的焊接表面106a处。
如先前提到的，通过分别制造两个构件101和102并且稍后将它们结合起来使得焊接表面105a焊接至对应的焊接表面106a而制成扩散器100。
实际上，通过将焊接表面105a配合在对应的焊接表面106a上并将连接表面105b配合在对应的连接表面106b上、并通过将超声束传输至第一构件101的基部或者第二构件102的基部同时施加压力，而将两个构件101和102结合起来。
会马上意识到各个台阶105的焊接表面105a基本垂直于焊接用的超声束。
同样，各个台阶106的焊接表面106a基本垂直于焊接用的超声束。
根据本发明的再一方面，还解决在焊接期间两个构件101和102的定相问题。这一问题是通过在其中一个构件上形成合适的突起116并在另一构件上形成对应的座置部122而解决的。突起116适于互锁在另一构件上设置的同样多的对应座置部122中。
在这一点上，本发明显然实现了期望目的及目标。
即，本发明使得能在包括曲线部的连接区处进行超声波焊接。
该方法还使得能在与所使用的超声束的方向基本平行的连接区处利用超声波焊接技术。
本方法的实际应用例如是通过在包括曲线部的连接区处超声波焊接两个构件而制造液压泵的扩散器。
该方法以及利用该方法提供的产品纯粹从经济角度来看也是极其有利的。
实际上发现根据本发明的超声波焊接方法及利用该方法获得的产品完全实现了期望目的及目标。
本申请要求2015年1月19日提交的意大利专利申请No.VI2015A000013的优先权，该意大利专利申请的主要内容通过援引结合于此。

Claims (10)

1.一种液压泵用扩散器的制造方法，该方法包括以下步骤：
准备由热塑性材料制成的第一构件和第二构件，将所述第一构件和所述第二构件定位成使相应的连接区以基本配合的方式相互毗邻；
在所述连接区处将超声束传输至所述第一构件和所述第二构件中的至少一者；
与传输所述超声束的步骤同时，向所述第一构件和所述第二构件施加压力，使所述第一构件和所述第二构件相互挤压以维持所述连接区相互接触；
其特征在于：
所述连接区包括相匹配的曲线部；
在准备所述第一构件和所述第二构件的步骤之前，所述方法包括在所述第一构件和所述第二构件上形成相配合的焊接表面的步骤，使得所述曲线部至少部分离散，
第一构件包括居中地设置有通孔并由曲线式的第一壁横向限定的第一主体；
所述曲线式的第一壁沿着所述第一主体的对称轴线向径向内侧弯曲；
叶片从所述第一壁延伸并且绕所述第一主体的对称轴线成角度地分布；
所述叶片从所述第一壁的上部弯曲到所述第一壁的下部；
相邻的两个叶片在从所述第一主体的对称轴线的方向观察时部分重叠；
所述第二构件包括大致筒形的第二主体，该第二主体居中地设有凹部，该凹部适于容纳所述第一主体的至少一部分；
所述大致筒形的第二主体包围所述凹部；
所述凹部具有与所述叶片的包络线大致互补的曲线形状；
基本在所述叶片的边缘处以及所述凹部的表面上形成有相互匹配的焊接表面，从而使所述叶片的边缘及所述凹部的表面至少部分离散。
2.根据权利要求1所述的方法，其特征在于，所述焊接表面基本垂直于所述超声束并且与所述曲线部连接从而中断所述曲线部的曲率连续性。
3.根据权利要求1或2所述的方法，其特征在于，所述焊接表面彼此毗邻。
4.根据权利要求1或2所述的方法，其特征在于，在成型所述构件的同时提供所述焊接表面。
5.根据权利要求1或2所述的方法，其特征在于，通过从所述构件去除材料而提供所述焊接表面。
6.根据权利要求1或2所述的方法，其特征在于，所述焊接表面的至少一部分包括适于使由所述超声束传输的能量集中的突起。
7.根据权利要求1或2所述的方法，其特征在于，所述构件包括定相装置；所述定相装置包括至少一对突起，所述至少一对突起形成在所述构件中的一者上并适于互锁在另一构件上形成的同样多的对应座置部中。
8.一种液压泵用扩散器，包括第一构件和第二构件，所述第一构件和第二构件借助在相应的连接区处传输的超声束焊接起来，所述连接区具有曲线部；其特征在于，所述第一构件和所述第二构件包括相匹配的焊接表面，所述焊接表面使所述曲线部至少部分离散，
所述第一构件包括居中地设置有通孔并由曲线式的第一壁横向限定的第一主体；
所述曲线式的第一壁沿着所述第一主体的对称轴线向径向内侧弯曲；
叶片从所述第一壁延伸并且绕所述第一主体的对称轴线成角度地分布；
所述叶片从所述第一壁的上部弯曲到所述第一壁的下部；
相邻的两个叶片在从所述第一主体的对称轴线的方向观察时部分重叠；
所述第二构件包括大致筒形的第二主体，该第二主体居中地设有凹部，该凹部适于容纳所述第一主体的至少一部分；
所述大致筒形的第二主体包围所述凹部；
所述凹部具有与所述叶片的包络线大致互补的曲线形状；
基本在所述叶片的边缘处以及所述凹部的表面上形成有相互匹配的焊接表面，从而使所述叶片的边缘及所述凹部的表面至少部分离散。
9.根据权利要求8所述的液压泵用扩散器，其特征在于，所述焊接表面基本垂直于所述超声束并且连接至所述曲线部从而中断所述曲线部的曲率连续性。
10.根据权利要求8所述的液压泵用扩散器，其特征在于，所述焊接表面彼此毗邻。
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