KR20030090976A - Process for connecting cemented carbide part to steel special use stainless part and product produced thereby - Google Patents
Process for connecting cemented carbide part to steel special use stainless part and product produced thereby Download PDFInfo
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- KR20030090976A KR20030090976A KR1020020028878A KR20020028878A KR20030090976A KR 20030090976 A KR20030090976 A KR 20030090976A KR 1020020028878 A KR1020020028878 A KR 1020020028878A KR 20020028878 A KR20020028878 A KR 20020028878A KR 20030090976 A KR20030090976 A KR 20030090976A
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- cemented carbide
- stainless steel
- sus
- material portion
- steel material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
본 발명은 이종(異種)재료인 SUS계 스테인레스강 재질 부분과 초경재료 부분을 접합하는 방법 및 이를 이용하여 제조되는 제품에 관한 것이다.The present invention relates to a method for joining a SUS-based stainless steel material portion and a cemented carbide material portion, which is a dissimilar material, and a product manufactured using the same.
종래에 내부식성이 요구되는 분야에서는 SUS계 스테인레스강 재질이 주로 사용되었지만, 내부식성 및 내마모성이 모두 요구되는 분야에서는 SUS계 스테인레스강 재질만으로는 한계가 있다. 한편 스텔라이트(stellite) 재질과 SUS계 스테인레스강 재질을 접합시켜서 제품을 제조함으로써 비용을 절감하려는 시도가 있긴 하지만, 용착된 스텔라이트는 통상 절삭에 의해 가공하여야 하기 때문에 가공이 어려우며 또한 내마모성이나 내부식성도 만족스럽지 못하다는 단점이 있었다.Conventionally, in the field where corrosion resistance is required, SUS-based stainless steel material is mainly used, but in the field where both corrosion resistance and wear resistance are required, there is a limitation in the SUS-based stainless steel material alone. On the other hand, while attempting to reduce cost by manufacturing a product by joining a stellite material with a SUS-based stainless steel material, welded stellite is difficult to process because it must be processed by cutting, and also wear resistance and corrosion resistance There was also a disadvantage that it was not satisfactory.
이에 내부식성 및 내마모성이 극히 우수한 초경재료로 전체를 형성한 제품이 사용되고 있다. 초경재료는 소결제품이므로 원하는 형상을 반소결상태에서 자유자재로 성형할 수 있어 가공이 용이하며 완전 소결 후 사상만 다이아몬드 휠로 연마하면 되는 장점이 있다. 그러나, 초경재료는 가격이 매우 비싸기 때문에 제품 전체를 초경재료로 제조하는 것은 많은 비용이 소요되는 실정이다.Accordingly, products formed entirely of cemented carbide materials have excellent corrosion resistance and wear resistance. Carbide material is a sintered product, so the desired shape can be molded freely in the semi-sintered state, so it is easy to process. However, since the cemented carbide material is very expensive, it is very expensive to manufacture the entire product from the cemented carbide material.
결국 SUS계 스테인레스강 재질을 사용하되 내부식성 및 내마모성이 필요한 일부만을 초경재료로 형성하여 SUS계 스테인레스강 재질의 부분에 접합하여 제품을 형성하는 것이 바람직하긴 하지만, 초경재료와 SUS계 스테인레스강 재질은 서로 접합성이 떨어져서 통상 사용하는 접합방법인 브레이징 가공을 하는 경우 접합부의 강도가 낮고 내구성이 충분하지 못하다는 문제점이 있다.After all, although it is preferable to use SUS stainless steel material and form only the part which needs corrosion resistance and abrasion resistance to cemented carbide material, it is desirable to join the SUS stainless steel material to form the product, but the cemented carbide material and SUS stainless steel material In the case of brazing processing, which is a commonly used bonding method due to poor adhesion to each other, there is a problem that the strength of the joint is low and the durability is not sufficient.
본 발명은 이러한 종래기술의 문제점을 해결하기 위한 것으로, 접합부의 강도가 높고 또한 내구성이 우수하게 유지되도록 SUS계의 스테인레스강 재질과 초경재료를 접합하는 방법을 제공하는 것을 그 목적으로 한다. 또한 이 방법에 의해 내부식성 및 내마모성이 우수하면서도 상대적으로 저렴한 비용으로 제조되는 제품을 제공하는 것을 그 목적으로 한다.The present invention is to solve the problems of the prior art, it is an object of the present invention to provide a method for joining a stainless steel material and cemented carbide material of the SUS system so that the strength of the joint portion is maintained high and durability. It is also an object of the present invention to provide a product which is excellent in corrosion resistance and wear resistance and manufactured at a relatively low cost.
이러한 목적을 달성하기 위하여, 본 발명에 의하면, SUS계 스테인레스강 재질 부분과 초경재료 부분을 접합하는 방법에 있어서, SUS계 스테인레스강 재질 부분의 접합면을 초경코팅하고, SUS계 스테인레스강 재질 부분의 코팅된 접합면과 초경재료 부분의 접합면 사이를 블레이징하는 방법이 제공된다.In order to achieve this object, according to the present invention, in the method of joining the SUS-based stainless steel material portion and the cemented carbide material portion, cemented carbide coating the joint surface of the SUS-based stainless steel material portion, A method of blazing between the coated joint surface and the joint surface of the cemented carbide material portion is provided.
또한 본 발명에 의하면, SUS계 스테인레스강 재질 부분과 초경재료 부분 사이를 추가적으로 열박음하여 접합하는 방법이 제공된다.According to the present invention, there is also provided a method of additionally shrinking and joining between a SUS-based stainless steel material portion and a cemented carbide material portion.
또한 본 발명에 의하면, 이와 같이 SUS계 스테인레스강 재질과 초경재료를 접합하여 제조되는 밸브와 식품가공용 커터가 제공된다.In addition, according to the present invention, there is provided a valve and a food processing cutter manufactured by joining a SUS stainless steel material and a cemented carbide material.
도 1은 소형 제품의 경우에 SUS계 스테인레스강 재질 부분과 초경재료 부분을 접합하는 방법을 나타내는 개략도이고,1 is a schematic view showing a method of joining a stainless steel material portion and a cemented carbide material portion in the case of a small product,
도 2는 대형 제품의 경우에 SUS계 스테인레스강 재질 부분과 초경재료 부분을 접합하는 방법을 나타내는 개략도이다.2 is a schematic view showing a method of joining a stainless steel material portion and a cemented carbide material portion in the case of a large product.
이하 본 발명의 바람직한 실시예에 근거하여 본 발명의 구성을 구체적으로 설명하도록 한다.Hereinafter, the configuration of the present invention will be described in detail based on the preferred embodiment of the present invention.
도 1은 본 발명에 의하여 SUS계의 스테인레스강 재질 부분과 초경재료 부분을 접합하는 형태를 개략적으로 도시한 것으로, 특히 소형의 제품을 접합하는 경우를 나타내는 것이다.Figure 1 schematically shows the form of joining the stainless steel material portion and the cemented carbide material portion of the SUS system according to the present invention, in particular showing the case of joining small products.
먼저 SUS계 스테인레스강 재질 부분(1)의 접합면(3)과 초경재료 부분(2)의 접합면(4)을 가공한다. 그 후 SUS계 스테인레스강 재질 부분(1)의 접합면(3)을 초경코팅(5)하게 된다. 이러한 SUS계 스테인레스강 재질 부분(1)의 초경코팅(5)된 접합면(3)과 초경재료 부분(2)의 접합면(4)을 은납 블레이징(6)함으로써 SUS계 스테인레스강 재질 부분(1)과 초경재료 부분(2)은 단단히 접합되게 된다.First, the joint surface 3 of the SUS stainless steel material part 1 and the joint surface 4 of the cemented carbide material part 2 are machined. After that, the cemented carbide coating 5 on the joint surface 3 of the SUS-based stainless steel material portion 1 is performed. The SUS-based stainless steel material portion is formed by silver soldering the joint surface 3 of the cemented carbide coated portion 5 of the SUS-based stainless steel material portion 1 and the joint surface 4 of the cemented carbide material portion 2 ( 1) and the cemented carbide material portion 2 are firmly bonded.
앞서 설명한 바와 같이 종래에는 초경재료와 SUS계 스테인레스강 재질은 서로 블레이징된 후에도 강도 및 내구성이 떨어지는 단점이 있었으나, 본 발명은 미리 초경코팅을 한 후 은납 블레이징을 행하게 되므로 접합 후의 내구성 및 강도가 뛰어나게 된다.As described above, the cemented carbide material and the SUS-based stainless steel material have a disadvantage in that strength and durability are inferior even after they are blazed with each other. To be excellent.
도 2는 본 발명에 의하여 SUS계의 스테인레스강 재질 부분과 초경재료 부분을 접합하는 형태를 개략적으로 도시한 것으로, 특히 대형의 제품을 접합하는 경우를 나타내는 것이다.Figure 2 schematically shows the form of joining the stainless steel material portion and the cemented carbide material portion of the SUS-based according to the present invention, particularly showing the case of joining a large product.
대형제품을 접합하는 경우에도 소형제품을 접합하는 경우와 동일한 과정으로 초경코팅 및 은납 블레이징 과정을 거치게 되나, 대형제품의 경우 접합을 더욱 견고하게 하기 위하여 추가적으로 양 부분 사이를 열박음함으로써 접합하게 된다.In the case of joining a large product, the cemented carbide coating and silver soldering process are performed in the same process as in the case of joining a small product, but in the case of a large product, the joint is additionally stitched between two parts in order to strengthen the bonding. .
보다 구체적으로 설명하자면, SUS계 스테인레스강 재질 부분(1)의 접합면(3)과 초경재료 부분(2)의 접합면(4)을 가공할 때에, SUS계 스테인레스강 재질 부분(1)의 접합면(3)에 소정 치수의 요(凹)홈(9)을 형성하고, 초경재료 부분(2)의 접합면(4)에 요홈(9)의 치수보다 약간 큰 치수의 철(凸)부(10)를 형성하게 된다. 상온에서는 철부(10)의 치수가 요홈(9)의 치수보다 약간 크기 때문에, 철부(10)는 요홈(9)에 끼워질 수 없다. 그 후 SUS계 스테인레스강 재질 부분(1)의 초경코팅(5)된 접합면(3)과 초경재료 부분(2)의 접합면(4)을 은납 블레이징(6)하게 된다. 이 때, SUS계 스테인레스강 재질 부분(1)이 가열되고 이에 따라 요홈(9)이 팽창하여 초경재료 부분(2)의 접합면(4)에 형성된 철부(10)가 요홈(9)에 끼워지게 되며, 그 후 상온으로 냉각되면 요홈(9)과 철부(10)가 단단히 맞물리게 된다. 이와 같이 초경코팅 및 은납 블레이징 방법과 열박음을 동시에 이용하게 되어 SUS계 스테인레스강 재질 부분(1)과 초경재료 부분(2)이 더욱 단단히 접합되는 것이다.More specifically, when processing the joint surface 3 of the SUS stainless steel material part 1 and the joint surface 4 of the cemented carbide material part 2, the joining of the SUS stainless steel material part 1 is performed. A concave groove 9 having a predetermined dimension is formed on the surface 3, and a concave portion having a size slightly larger than that of the concave groove 9 is formed on the joining surface 4 of the cemented carbide material portion 2 ( 10). Since the dimension of the convex portion 10 is slightly larger than that of the groove 9 at room temperature, the convex portion 10 cannot be fitted into the groove 9. Thereafter, the cemented coated surface 5 of the cemented carbide coated portion 5 of the SUS stainless steel material portion 1 and the bonding surface 4 of the cemented carbide material portion 2 are silver-lead blazed 6. At this time, the SUS stainless steel part 1 is heated so that the groove 9 expands so that the convex portion 10 formed on the joint surface 4 of the cemented carbide material part 2 fits into the groove 9. After that, when cooled to room temperature, the grooves 9 and the iron portions 10 are firmly engaged. As described above, the cemented carbide coating and the silver soldering blazing method and shrinkage are simultaneously used, so that the SUS-based stainless steel material part 1 and the cemented carbide material part 2 are more firmly bonded.
이와 같은 방법으로 제조되는 제품은 주로 그 응용분야가 마모나 부식이 심한 밸브 또는 식품(사료를 포함)가공분야의 커터 등에 주로 사용되게 된다.Products manufactured in this way are mainly used in valves or food cutters, which have a high wear or corrosion.
이상에서 설명한 바와 같이 본 발명은, 초경코팅, 블레이징 및 열박음을 적절히 조합하여, 접합부의 강도가 높고 또한 내구성이 우수하게 유지되도록 SUS계의 스테인레스강 재질과 초경재료를 접합하는 방법을 제공하며, 또한 내부식성 및 내마모성이 우수하면서도 상대적으로 저렴한 비용으로 제조되는 밸브 또는 식품가공 커터 등과 같은 제품을 제공할 수 있다.As described above, the present invention provides a method of joining a cemented carbide material and a cemented carbide material of SUS type so as to maintain a high strength and excellent durability of the joint by appropriately combining cemented carbide coating, blazing and shrinkage. In addition, the present invention can provide products such as valves or food cutters, which are excellent in corrosion resistance and wear resistance and manufactured at relatively low cost.
Claims (4)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101633228B1 (en) * | 2015-08-12 | 2016-06-23 | 조우진 | Manufacturing method of drill tool for processing composite material |
| CN109282082A (en) * | 2018-11-23 | 2019-01-29 | 潜江新锐硬质合金工具有限公司 | A kind of needle-type throttle valve valve rod and its processing and forming technology |
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2002
- 2002-05-24 KR KR1020020028878A patent/KR20030090976A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101633228B1 (en) * | 2015-08-12 | 2016-06-23 | 조우진 | Manufacturing method of drill tool for processing composite material |
| CN109282082A (en) * | 2018-11-23 | 2019-01-29 | 潜江新锐硬质合金工具有限公司 | A kind of needle-type throttle valve valve rod and its processing and forming technology |
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