KR100799272B1 - Heat treatment methods which use a wire rod heat treatment whole aspect jig system and that jig system - Google Patents

Heat treatment methods which use a wire rod heat treatment whole aspect jig system and that jig system Download PDF

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KR100799272B1
KR100799272B1 KR1020070050326A KR20070050326A KR100799272B1 KR 100799272 B1 KR100799272 B1 KR 100799272B1 KR 1020070050326 A KR1020070050326 A KR 1020070050326A KR 20070050326 A KR20070050326 A KR 20070050326A KR 100799272 B1 KR100799272 B1 KR 100799272B1
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South Korea
Prior art keywords
heat treatment
base plate
wire rod
wire
jig device
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KR1020070050326A
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Korean (ko)
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최충열
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주식회사 부강스틸
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/663—Bell-type furnaces
    • C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0006—Details, accessories not peculiar to any of the following furnaces
    • C21D9/0025—Supports; Baskets; Containers; Covers

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

A jig device for heat treatment of a wire rod is provided to fundamentally prevent defective elements such as marks and flaws due to load by stacking a plurality of wire rod coils in multistage, thereby dispersing load of the entire wire rod coils, and substantially improve quality of heat treatment by transferring uniform heat to the entire wire rod coils, and a method for heat treatment of a wire rod using the jig device is provided. An exclusive jig device for heat treatment of a wire rod includes: a base plate which has predetermined thickness and diameter, and which has an air stream-flowing through hole vertically perforated in a central part thereof; at least two supporting rods which have predetermined lengths, and which are set up on the base plate and connected to each other by reciprocal connecting plates; and cylindrical connecting rods(130) which have diameters larger than those of the supporting rods and formed on the bottom of the base plate correspondingly to the supporting rods. The base plate additionally has auxiliary air stream flowing grooves formed in positions thereof separately from the air stream-flowing through hole. The base plate additionally has projected reinforcing rib parts formed on a top face thereof such that the reinforcing rib parts have narrow widths and are thicker than the base plate.

Description

선재 열처리전용 지그장치와 그 지그장치를 이용한 열처리방법{Heat treatment methods which use a wire rod heat treatment whole aspect jig system and that jig system}Heat treatment methods which use a wire rod heat treatment whole aspect jig system and that jig system}

도 1은 본 발명에서 제시된 지그장치의 사시도1 is a perspective view of a jig device presented in the present invention

도 2은 본 발명에서 제시된 지그장치를 다단 적층한 상태의 사시도Figure 2 is a perspective view of a multi-stacked state of the jig device presented in the present invention

도 3은 본 발명에서 제시된 지그장치의 정단면도 및 평면도Figure 3 is a front sectional view and a plan view of the jig device presented in the present invention

도 4는 본 발명에서 제시된 지그장치에 선재코일을 안착한 상태에서 다단 적층한 상태의 단면도Figure 4 is a cross-sectional view of the multi-stacked state in the wire rod coil seated state in the jig device presented in the present invention

도 5는 열처리로의 쳄버내에 투입한 후 열처리하는 상태의 예시도5 is an exemplary view of a state in which heat treatment is performed after being introduced into a chamber of a heat treatment furnace.

도 6은 본 발명에서 제시된 지그장치의 베이스판에 추가로 구성될 수 있는 보조 기류 유동홈, 보강힘살부를 나타낸 예시도Figure 6 is an exemplary view showing an auxiliary air flow flow groove, reinforcing force portion that can be further configured to the base plate of the jig device presented in the present invention

*도면의 주요부분에 대한 부호설명** Description of Signs of Main Parts of Drawings *

100: 베이스판 101:보강힘살부100: base plate 101: reinforcement

110:기류 유동성 통공 111:보조 기류 유동홈110: air flow fluid through 111: auxiliary air flow flow groove

120:지지봉 121:연결플레이트120: support rod 121: connecting plate

130:결합봉 A:선재코일 열처리전용지그장치130: bonding rod A: jig device for heat treatment of wire coil

S:선재코일 H:열처리로S: Wire rod H: By heat treatment

C:쳄버C: Chamber

본 발명은 다수의 선재(철선, 강선 등) 코일을 다단 적재한 후 일정한 고온 분위기의 열처리로를 이용하여 열처리할 때 전체 선재코일의 하중을 다단으로 분산하여 하중에 따른 자국, 흠집발생 등의 불량요소를 근원적으로 방지할 뿐 아니라 열처리 대상체인 선재코일 전체에 균일한 복사열과 대류열이 전달/순환될 수 있도록 하여 균일하고 우수한 열처리 품질을 보장하는 선재 열처리전용 지그장치 및 그 열처리방법에 관한 것이다.According to the present invention, when a plurality of wire rods (steel wire, steel wire, etc.) are stacked in multiple stages, and the heat treatment is performed by using a heat treatment furnace of a constant high temperature atmosphere, the load of the entire wire coil is dispersed in multiple stages, and defects such as marks, scratches, etc. according to the loads are distributed. The present invention relates to a jig device for heat treatment for wire rods and a method of heat treatment that ensures uniform and excellent heat treatment quality by preventing elements from being fundamentally prevented and allowing uniform radiant heat and convection heat to be transmitted / circulated to the entire wire coil, which is a heat treatment object.

종래의 선재 열처리방법은 가늘고 긴 강선(낚시바늘, 재봉틀바늘 등의 소재) 코일로 감겨진 다수 묶음의 선재코일 위에 또 하나의 선재코일을 올려 놓는 단순한 쌓기 형태로 선재코일을 상,하 겹겹이 적재한 후 열처리로의 쳄버내에 투입하여 열처리를 실시하고 있었으나,Conventional wire rod heat treatment method is a simple stacking form in which another wire rod coil is placed on a plurality of bundles of wire rod coils wound with thin long steel wires (fishing needles, sewing machine needles, etc.) coils. After the heat treatment was put into the chamber of the heat treatment furnace,

이러한 종래 열처리 방법은 전술된 바와 같이 상당한 중량체인 선재코일을 상,하 높이로 단순 겹겹이 쌓아 올린 상태로 열처리를 실시함에 따라,In the conventional heat treatment method, as described above, as the heat treatment is performed in a state in which a simple stack of wire rod coils, which are substantial weights, is stacked up and down heights,

선재코일 열처리시 수반되는 고온(700~1000℃)에 의해 선재코일의 강선이 연화될 때 상, 하로 높게 쌓아 올린 선재코일 사이에 미치는 자체하중의 가압력에 때문에 자국 또는 흠집 등의 불량요소를 유발하여 품질을 크게 훼손하였던 문제점이 있을 뿐 아니라,When the steel wire of wire rod coil is softened by high temperature (700 ~ 1000 ℃) accompanying heat treatment of wire coil, it causes defects such as marks or scratches due to the pressure of self load between wire coils stacked up and down. Not only does it have a significant loss of quality,

선재코일과 선재코일을 서로 겹겹이 쌓은 상기 종래 열처리 형태는 열처리로의 쳄버내에 인가되는 고온의 복사열과 대류열이 선재코일의 모든 가닥의 강선에 균일한 전달을 저해하는 원인으로 작용하여 고품질의 열처리에 막대한 지장을 초래했던 문제점이 있었다.The conventional heat treatment type in which the wire rod coil and the wire coil are stacked on top of each other is applied to high quality heat treatment by causing high temperature radiant heat and convection heat to be applied to the wires of all the strands of the wire coil. There was a problem that caused enormous obstacles.

즉, 선재(강선)는 낚시바늘, 재봉틀바늘 등을 생산시 사용된 소재로서 직경이 아주 가는 강선으로 구성되지만 수많은 가닥의 강선이 함께 감겨진 선재코일은 상당한 중량체인 한편,In other words, the wire rod (steel wire) is a material used in the production of fishing needles, sewing machine needles, etc. consisting of a very thin steel wire, but the wire coil wound with a number of strands of wire is a considerable weight body,

선재코일에 감겨진 한 가닥의 강선은 직경이 아주 가늘기 때문에 열처리를 위한 고온의 복사열과 대류열이 인가될 경우 쉽게 연화되는 성질을 가짐에 따라,Since a single strand of steel wire wound around the wire coil is very thin in diameter, it tends to soften easily when high temperature radiant and convective heat is applied for heat treatment.

종래와 같이 상,하 일정높이 여러 겹 쌓아 올릴 경우 최하위에 위치한 선재코일에 상단코일들의 집중 가압 하중이 미쳐 자국이나 흠집을 유발할 수밖에 없는 것이고,When stacking a certain height above and below a certain height as in the prior art, the concentrated pressure load of the upper coils is forced to the bottom of the wire rod located at the lowermost level, which inevitably causes marks or scratches.

또한 다수의 선재코일을 종래와 같이 단순히 상,하 높이로 다단 쌓아 올리게 되면 선재코일과 선재코일의 묶음 사이는 물론 그 선재코일의 철심 사이의 기류(공 간)를 차단해 균일한 열풍전달이 이루어지지 못하는 문제점을 유발하게 된다.In addition, if a plurality of wire rods are simply stacked in the upper and lower heights as in the prior art, a uniform hot air transmission is achieved by blocking the airflow (space) between the wire rod and the bundle of the wire rod coils, as well as between the cores of the wire rod coils. It causes problems that can not be supported.

이에 본 발명에서는 상기한 문제점을 일소하기 위해 창안한 것으로서, 열처리기의 쳄버내에 투입되는 다수 선재코일의 하중이 각각 분산된 상태로 상하 다단 적재될 수 있도록 함과 동시에 적재되는 각 선재코일 사이에 일정한 기류 이동성을 보장하는 공간을 하래하여, 열처리시 자체 하중에 의한 자국이나 흠집 등의 불량을 근원적으로 방지하고 나아가 열처리시 인가되는 대류열과 복사열이 각 선재코일의 철심 곳곳에 균일한 전달이 이루어져 선재 열처리의 품질향상에 크기 기여할 수 있는 선재 열처리전용 적재지그를 제공하는 것에 주안점을 두고 그 기술적 과제로서 완성한 것이다.Accordingly, the present invention was devised to solve the above problems, and the load of the multiple wire rod coils put into the chamber of the heat treatment machine can be loaded in multiple stages in a dispersed state, and at the same time, the wire coils are uniformly stacked. By providing a space that guarantees airflow mobility, it prevents defects such as marks and scratches due to its own load during heat treatment, and furthermore, convective heat and radiant heat applied during heat treatment are uniformly transmitted to the core of each wire coil to make heat treatment. The main objective of the present invention is to provide a loading jig dedicated to wire rod heat treatment that can contribute to the improvement of quality.

위 기술적 과제를 달성하기 위해 본원에서는 첨부된 각 도면에 의거보다 상세히 설명하면 하기와 같다.In order to achieve the above technical problem, the present invention will be described in more detail based on the accompanying drawings.

본 발명은 도 1 내지 도 6에서 도시된 바와 같이 일정한 두께를 가지며, 중앙부에 일정한 모양의 상,하 기류 유동성 통공(110)이 천공된 일정한 직경의 베이스판(100)을 형성한 것과;The present invention has a constant thickness as shown in Figures 1 to 6, and the upper and lower air flow flow holes 110 of a predetermined shape in the center to form a constant diameter of the base plate 100;

상기 베이스판(100)의 상방에는 일정한 길이를 가지며, 상호 연결플레이 트(121)로 연결된 두 개 이상의 지지봉(120)을 착설한 것과;An installation of two or more support rods 120 having a predetermined length above the base plate 100 and connected by interconnect plates 121;

상기 베이스판(100)의 저면에는 상기 상방의 지지봉(120)과 일치하는 개수와 대응 위치에 그 지지봉(120)보다 직경이 큰 원통형 결합봉(130)을 구비하는 것; 을 포함하는 것이다.A bottom surface of the base plate 100 having a cylindrical coupling rod 130 having a diameter larger than that of the support rod 120 at a number corresponding to the upper support rod 120; It will include.

상기한 구성 중 베이스판(100)에 형성된 상,하 기류통공(110)은 상,하 다단 적재되는 열처리용 지그체(A)와 지그체(A) 사이에 열풍기류가 통과 될 수 있도록 하는 것으로서 도시된 형태와 같이 지지봉(120)이 착설되는 베이스판(100)의 일정부분은 제외하고 나머지 구간을 완전히 뚫어서 형성할 수도 있으나, 때에 따라서는 적은 크기의 다수개 홈을 천공하여 일정한 기류를 형성할 수 있음은 물론이다.(미도시)The upper and lower air flow holes 110 formed in the base plate 100 of the above configuration is to allow the hot air flow to pass between the heat treatment jig body (A) and the jig body (A) are stacked in the upper and lower stages. Except for a portion of the base plate 100 on which the support rod 120 is installed as shown, it may be formed by completely puncturing the remaining sections, but in some cases, a plurality of grooves having a small size may be formed to form a constant air flow. Of course it can. (Not shown)

그리고 상기 베이스판(100)의 상면에 수직으로 착설되는 지지봉(120)은 앞서 전술된 바와 같이 두 개 이상 상황에 따라 3,4,5,6개 ... 등으로 구성할 수 있고, 상기 지지봉(120) 사이에는 상호 견고한 지지력유지 및 변형의 최소화를 위한 연결플레이트(110)를 "+"교차연결구성할 수 있는 한편, 이는 파이프 또는 환봉 등을 사용할 수 있는 것이며, 일정한 직경 크기로 감겨진 하나 또는 최소 수량의 선재코일이 용이하게 끼워 안착시킨 후 열처리 될 수 있는 효율적 적재 및 지지수단을 제공한다.And the support rod 120 is installed vertically on the upper surface of the base plate 100 may be composed of 3, 4, 5, 6 ... etc. according to two or more situations as described above, the support rod Between the 120 can be configured to "+" cross connection of the connection plate 110 for maintaining mutually strong support and minimizing deformation, which can be used such as pipes or round rods, one wound to a certain diameter size Or it provides an efficient loading and supporting means that can be heat-treated after the minimum number of wire coils are easily fitted.

한편, 상기 베이스판(100) 저면에 구비하는 결합봉(130)은 지그체(A)를 상,하 다단 연속 적재할 때, 다른 지그체(A)의 지지봉(120) 끝단에 일부 삽입되어 안정적인 적재/안착 유지될 수 있게 그 결합봉(130)의 내경 크기가 상기 지지봉(120)의 외경 직경보다 크게 형성된다. On the other hand, the coupling rod 130 provided on the bottom surface of the base plate 100 is stable when partially inserted into the end of the support rod 120 of the other jig body (A) when the jig body (A) up and down multi-stage stacking The inner diameter of the coupling rod 130 is formed to be larger than the outer diameter of the support rod 120 so that it can be loaded and seated.

그리고 상기한 구성 중 베이스판(100)에는 그 중앙의 일정한 구간내에 천공된 기류 유동성통공(110) 이외에도 필요에 따라 베이스판(100) 외곽지점 등에 보조적인 보조 기류 유동홈(111)을 추가로 더 형성시킬 수 있음은 물론이다.In addition to the above-described configuration, the base plate 100 is further provided with an auxiliary air flow flow groove 111, which is auxiliary to the outer point of the base plate 100, etc. Of course, it can form.

또한 상기 베이스판(100)은 기본적으로 열 변형에 대한 소정의 지지력을 가지고 있지만 둘이상의 지지봉(120)이 연결플레이트(121)에 의해 연결된 구성으로 인해 열변형(뒤틀림 등)에 대한 상당한 지지력이 유지될 수 있다.In addition, the base plate 100 basically has a predetermined support for thermal deformation, but due to the configuration in which two or more support rods 120 are connected by the connection plate 121, a considerable support for thermal deformation (warping, etc.) is maintained. Can be.

그러나 상기한 베이스판(100)의 하단면에 폭이 좁으면서 그 베이스판(100)의 살두께 보다 돌출된 보강힘살부(101)를 추가로 더 형성할 수 있는데, 이는 보다 많은 기간의 사용회수로 사용되더라도 열변형에 따른 지그체의 손실을 최소화하는데 상당한 역할을 담당한다.However, the lower end surface of the base plate 100 may be further formed with a reinforcement force portion 101 protruding more than the flesh thickness of the base plate 100, which is more frequent use times Even if it is used as, it plays a significant role in minimizing the loss of jigs due to heat deformation.

이와 같이 구성되는 본 발명의 선재 열처리전용 적재지그장치는 전술된 바와 같이 선재코일(S)을 일정한 크기의 열처리로(H)의 쳄버(C)내에서 수납하여 열처리코자할 때, 다수의 선재코일(H) 자체를 상,하로 단순히 쌓아올려서 열처리하는 기 존 방법과는 달리,As described above, the loading jig device for wire rod heat treatment according to the present invention includes a plurality of wire coils when the wire rod coil S is housed in a chamber C of a heat treatment furnace H of a predetermined size. (H) Unlike the existing method of simply stacking itself up and down to heat treatment,

상기 본원에서 제시된 지그장치(A)를 통해 선재코일(S)을 수납하게 되면 아주 효율적으로 수납/적재할 수 있을 뿐 아니라 특히, 지그장치(A)를 이용해 선재를 적재할 경우 열처리시 인가되는 복사열과 대류열이 모든 선재코일(S)로 순환/공급되면서 균일하게 전달될 수 있는 최적조건이 마련됨에 따라 선재 열처리 품질을 대폭 향상할 수 있고,If the wire coil (S) is accommodated through the jig device (A) presented in the present application, not only can be stored / loaded very efficiently, but in particular, radiant heat applied during heat treatment when the wire rod is loaded using the jig device (A). As the convection heat is circulated / supplied to all the wire coils S, the optimum conditions for the uniform delivery of the wires can be provided.

무엇보다, 상기 본원의 지그장치(A)를 이용해 열처리를 하게 되면 기존과 같이 다수의 선재코일(S)의 하중이 아래측의 선재코일(S)에 집중적으로 미치는 것이 아니라 하나하나의 선재코일(S)의 하중을 상,하 다단으로 각각 분산되는 상당한 역할을 하게 됨으로서, 다수의 선재코일(S)간 밀착되어나 자체하중에 따른 가압력에 의한 자국, 흠집 등의 불량을 원천적으로 방지할 수 있는 아주 유용한 발명이다.First of all, when the heat treatment using the jig device (A) of the present application, the load of a plurality of wire rod coil (S) as in the conventional one does not concentrate on the wire rod (S) of the lower side, but one wire coil ( As it plays a significant role in distributing the load of S) in the upper and lower stages, it is possible to prevent defects such as scratches and scratches due to close contact between the plurality of wire coils (S) and pressure due to its own load. It is a very useful invention.

이상과 같은 본 발명의 선재코일 열처리 전용 지그장치는 상술된 바와 같이 선재의 열처리시 피열처리물의 취급상 용이성은 물론 다수 선재코일의 자체 하중으로 인한 불량과 열처리로의 쳄버내에 인가되는 복사열과 대류열의 미전달 또는 불규칙전달에 따라 불량요소를 근원적으로 방지될 수 있는 등 선재의 열처리품질 향상에 크기 기여할 수 있는 아주 다대한 발명이다.As described above, the jig device for heat treatment of the wire coil as described above is not only easy to handle the heat treated material during heat treatment of the wire rod, but also due to defects caused by its own load of a plurality of wire coils and radiant heat and convection heat applied to the chamber of the heat treatment furnace. It is a very large invention that can contribute to the improvement of heat treatment quality of wire rods, which can fundamentally prevent defective elements due to undelivered or irregular delivery.

Claims (4)

일정한 두께를 가지며, 중앙부에 일정한 모양의 상,하 기류 유동성 통공(110)이 천공된 일정한 직경의 베이스판(100)을 형성한 것과;It has a constant thickness, and the base plate 100 of a constant diameter of the upper and lower air flow flow holes 110 of a predetermined shape in the center portion is formed; 상기 베이스판(100)의 상방에는 일정한 길이를 가지며, 상호 연결플레이트(121)로 연결된 두 개 이상의 지지봉(120)을 착설한 것과;An installation of two or more support rods 120 having a predetermined length above the base plate 100 and connected by interconnect plates 121; 상기 베이스판(100)의 저면에는 상기 상방의 지지봉(120)과 일치하는 개수와 대응 위치에 그 지지봉(120)보다 직경이 큰 원통형 결합봉(130)을 구비하는 것; 을 특징으로 한 선재 열처리전용 지그장치.A bottom surface of the base plate 100 having a cylindrical coupling rod 130 having a diameter larger than that of the support rod 120 at a number corresponding to the upper support rod 120; Jig device for wire rod heat treatment, characterized in that. 제 1항에 있어서,The method of claim 1, 상기 기류 유동성통공(110)이 천공된 베이스판(100)에는 기류 유동성통공(110)과 별도의 위치에 보조적인 보조 기류 유동홈(111)을 추가로 더 형성시키는 것을 특징으로 한 선재 열처리전용 지그장치.The base plate 100 in which the airflow fluid through hole 110 is perforated is further provided with an auxiliary air flow flow groove 111 which is auxiliary to the airflow fluid through hole 110 and is further formed. Device. 제 1항에 있어서,The method of claim 1, 상기 베이스판(100)의 하단면에는 폭이 좁으면서 그 베이스판(100)의 살두께 보다 돌출된 보강힘살부(101)를 추가로 더 형성한 것을 특징으로 한 선재 열처리전 용 지그장치.The bottom surface of the base plate 100, the width of the jig device for heat treatment before heat treatment, characterized in that further formed a reinforcement force portion 101 protruding more than the flesh thickness of the base plate (100). 피열처리물인 다수의 선재코일(S)을 상,하 기류 유동성 통공(110)이 천공된 베이스판(100)과, 상기 베이스판(100)의 상방에 연결플레이트(121)로 연결된 두 개 이상의 지지봉(120)과, 상기 베이스판(100)의 저면에 구비하는 결합봉(130)을 포함한 다수의 지그장치(A)에 수납한 후 그 지그장치(A)를 상,하 다단 적층하여 선재코일(S)과 선재코일 사이의 하중을 각각 분산함과 동시에 각 선재코일(S) 사이의 기류 유동성을 확보한 상태에서 열처리가 이루어질 수 있도록 한 것을 특징으로 하는 선재 열처리전용 지그장치를 이용한 열처리방법.Two or more support rods connected to the base plate 100 through which the plurality of wire coils S, which are heat-treated, up and down air flow fluid through holes 110 are perforated, and a connection plate 121 above the base plate 100. 120 and a plurality of jig devices (A) including a coupling rod (130) provided on the bottom of the base plate (100), and the jig device (A) is stacked up and down in multiple stages. Heat treatment method using a jig device for wire rod heat treatment, characterized in that the heat treatment can be carried out while distributing the load between S) and the wire coil, respectively and at the same time ensuring the air flow fluidity between each wire coil (S).
KR1020070050326A 2007-05-23 2007-05-23 Heat treatment methods which use a wire rod heat treatment whole aspect jig system and that jig system KR100799272B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105291007A (en) * 2015-05-29 2016-02-03 荆门诺恒科技有限公司 Aging treatment clamp for FT15 missile launcher
CN107760853A (en) * 2017-10-30 2018-03-06 浙江超龙汽车零部件有限公司 Steel annealing is rolled with big carrying capacity bin

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JPH0381352U (en) * 1989-12-11 1991-08-20
JPH0598342A (en) * 1991-10-03 1993-04-20 Toyota Motor Corp Jig for heat treatment
JPH05171301A (en) * 1991-12-16 1993-07-09 Shoei Kogyo:Kk Stem jig for annealing wire rod
JPH0689864A (en) * 1992-09-09 1994-03-29 Kawasaki Steel Corp Jig for semiconductor wafer heat treatment
KR20020056549A (en) * 2000-12-29 2002-07-10 이계안 A jig for shot peening of connecting rod

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Publication number Priority date Publication date Assignee Title
JPH0381352U (en) * 1989-12-11 1991-08-20
JPH0598342A (en) * 1991-10-03 1993-04-20 Toyota Motor Corp Jig for heat treatment
JPH05171301A (en) * 1991-12-16 1993-07-09 Shoei Kogyo:Kk Stem jig for annealing wire rod
JPH0689864A (en) * 1992-09-09 1994-03-29 Kawasaki Steel Corp Jig for semiconductor wafer heat treatment
KR20020056549A (en) * 2000-12-29 2002-07-10 이계안 A jig for shot peening of connecting rod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105291007A (en) * 2015-05-29 2016-02-03 荆门诺恒科技有限公司 Aging treatment clamp for FT15 missile launcher
CN107760853A (en) * 2017-10-30 2018-03-06 浙江超龙汽车零部件有限公司 Steel annealing is rolled with big carrying capacity bin

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