KR100253822B1 - Manufacturing process of an industrial daiphragm - Google Patents

Manufacturing process of an industrial daiphragm Download PDF

Info

Publication number
KR100253822B1
KR100253822B1 KR1019970052969A KR19970052969A KR100253822B1 KR 100253822 B1 KR100253822 B1 KR 100253822B1 KR 1019970052969 A KR1019970052969 A KR 1019970052969A KR 19970052969 A KR19970052969 A KR 19970052969A KR 100253822 B1 KR100253822 B1 KR 100253822B1
Authority
KR
South Korea
Prior art keywords
diaphragm
fabric layer
screw member
industrial
rubber
Prior art date
Application number
KR1019970052969A
Other languages
Korean (ko)
Other versions
KR19990032040A (en
Inventor
김재기
Original Assignee
김재기
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김재기 filed Critical 김재기
Priority to KR1019970052969A priority Critical patent/KR100253822B1/en
Publication of KR19990032040A publication Critical patent/KR19990032040A/en
Application granted granted Critical
Publication of KR100253822B1 publication Critical patent/KR100253822B1/en

Links

Images

Classifications

    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
    • B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
    • B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles
    • B29C2043/147—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles by compressing after the laying of further material
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • B29C2043/189—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles the parts being joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2627/00—Use of polyvinylhalogenides or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2627/12—Use of polyvinylhalogenides or derivatives thereof for preformed parts, e.g. for inserts containing fluorine
    • B29K2627/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • 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
    • B29L2031/755—Membranes, diaphragms

Abstract

PURPOSE: A diaphragm manufacturing method is provided to enlarge and maintain durability of diaphragm and reliability of function in an industrial area with material strong in chemical quality as a target such as waste oil and wastewater. CONSTITUTION: A heat pressurizing mold die is furnished and in a center thereof, a screw member(20) consisting of a heat portion(21) of step type and a screw portion(22) are disposed. 2¯5 sheets of a rubber raw fabric(11) equipped with a textile fabric raw are stacked to penetrate the screw member and primarily heat-pressurized to be molded. Thereby a product is obtained in a form that the head portion(21) of the screw member(20) is inserted inwardly of a rubber raw fabric layer(10). Then an adhesive is spread over the rubber raw fabric layer inserted with the screw member and a teflon member(30) molded by an extra dedicated die is placed thereon to apply heat-pressurization molding. The teflon member is firmly adhered on the rubber raw fabric layer and thus an industrial diaphragm including one face of the rubber raw fabric layer(10) protected by the teflon member is manufactured.

Description

산업용 다이아프램의 제조방법Manufacturing method of industrial diaphragm

본 발명은 가스류, 수류, 유류 등을 이용하는 여러 산업분야의 기계장치 즉, 계량기, 순환펌프, 기화기 등에 내장되어 압력을 균일하게 제어하여 주는 역할을 하는 산업용 다이아프 램의 제조방법에 관한 것으로서, 더욱 상세하게는 고무원단을 다수매 적층하면서 그 상면에 내화학성이 우수한 테프론부재를 적층하여 폐유, 폐수등과 같이 화학성질이 강한 물질에 적용시 다이아프램의 특성을 외관적 변형이나 화학적 변형없이 그대로 유지시켜 주므로서 제품의 품질향상에 의한 기능의 신뢰성을 높힘과 아울러 수명연장효과를 높일 수 있는 산업용 다이아프램의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing an industrial diaphragm that serves to control pressure uniformly by being embedded in a mechanical device, such as a meter, a circulating pump, a vaporizer, etc. in various industrial fields using gas, water, oil, and the like. More specifically, by stacking a large number of rubber fabrics and stacking a Teflon member having excellent chemical resistance on the upper surface thereof, the characteristics of the diaphragm can be changed without appearance or chemical modification when applied to a material with strong chemical properties such as waste oil and waste water. The present invention relates to a method for manufacturing an industrial diaphragm that can maintain and increase the reliability of a function by improving the quality of a product and increase the life extension effect.

일반적으로 가스연료계통의 가스계량기 및 자동차가스연료 공급계통의 가스 기화기와 수류, 유류 등을 펌핑처리하는데 적용되는 순환펌프에는 가스의 공급압력이나 수압, 유압을 균일하게 제어 유지시켜 주는 역활을 하도록 다이아프램(diaphrahm)이 내장되어져 있다.In general, the circulating pump applied to pump gas vaporizers of gas fuel systems and gas vaporizers of car gas fuel supply systems, water flow and oil, etc. plays a role of uniformly controlling gas supply pressure, water pressure, and hydraulic pressure. There is a built-in diaphrahm.

상기에서와 같은 여러 산업분야에서 이용되는 특히, 펌핑대상이 화학적 성질이 강한 폐유, 폐수 등에 적용되는 산업기계(순환펌프)용의 다이아프램은 단순히 직물심체(원단)의 표면에 고무피막을 적층시킨 형태의 다이아프램이 적용되고 있으나, 위 기재의 강한 화학성질을 갖는 폐유, 폐수 등을 펌핑에 의해 순환시키는 산업기계에 해당하는 순환펌프에서는 펌핑하고자 하는 대상물이 폐유, 폐수 이기때문에 내장되어진 다이아프램이 이들에 접촉될 경우에 화학적으로 쉽게 부식되거나 형태변경 및 취약함이 발생되어 기능의 신뢰성이 떨어지게 되는 결점이 있었으며, 제품의 수명이 단축되는 등 사용상에 있어서도 문제점이 있었다.In particular, the diaphragm for industrial machinery (circulating pump), which is used in various industrial fields as described above, is applied to waste oil, wastewater, etc., which have a strong chemical property, and a rubber film is simply laminated on the surface of a fabric core (fabric). Although a diaphragm of the type is applied, in a circulating pump corresponding to an industrial machine that circulates waste oil, waste water, etc. having strong chemical properties as described above by pumping, a diaphragm built in because the object to be pumped is waste oil, waste water. When contacted with them, there was a drawback that the chemicals were easily corroded, morphologically changed and weakened, so that the reliability of the function was lowered, and the use of the product was shortened.

다시 말해서 폐수, 폐유와 같이 화학성이 강한 물질과 접촉되는 특정의 사용분야에서 요구되는 기존의 다이아프램은 직물심체의 표면에 고무피막을 형성시킨 형태이기 때문에 특정분야(특히 화학성 물질이 접촉되는 분야)에서 요구되는 물성을 충족시키지 못하여 쉽게 부식되는 등 기능의 신뢰성 저하와 내구성이 저하되는 등 여러 문제점이 있었다.In other words, the existing diaphragm required for a specific field of use in contact with chemically strong substances such as waste water and waste oil is formed in a rubber coating on the surface of the fabric core. There are a number of problems, such as failure to meet the required physical properties, such as corrosion easily degrades the reliability and durability of the function.

따라서 본 발명은 상기와 같은 기존의 제반 문제점을 해결하기 위해서 안출된 것으로서, 본 발명은 폐유, 폐수와 같은 화학적 성질이 강한 물질을 대상으로 하는 산업분야에서 다이아프램의 내구성과 기능의 신뢰성을 증대 유지하기 위한 다이아프램의 제조방법을 개발완성하여 제품의 고품질화의 제품의 생산성 증대효과를 기대할 수 있는 산업용 다이아프램의 제조방법을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the present invention is to maintain the durability and function reliability of the diaphragm in the industrial field targeting the strong chemical properties such as waste oil, waste water The purpose of the present invention is to provide a method for manufacturing an industrial diaphragm, which can be expected to increase the productivity of a product by improving the quality of a product by developing and manufacturing a diaphragm.

이러한 목적을 달성하기 위한 본 발명의 특징적인 기술은 다음과 같다.The technical features of the present invention for achieving this object are as follows.

금형장치에 대해 나사부재를 고정배치한 상태에서 다수의 고무원단을 나사부재에 대해 관통되게 적층배치하면서 1차 열가압 성형가공한 다음 그 상면에 내화학성이 양호한 테프론부재를 적층하여 2차 열가압 성형가공하여 이루어진 산업용 다이아프램을 개발 완성한 것이다.In the state in which the screw member is fixedly placed on the mold apparatus, a plurality of rubber fabrics are laminated through the screw member in a primary heat-pressure forming process, and then a Teflon member having good chemical resistance is laminated on the upper surface thereof. The industrial diaphragm formed by molding is completed.

도1은 본 발명에 의한 다이아프램의 일부절결 사시도.1 is a partially cutaway perspective view of a diaphragm according to the present invention;

도2는 본 발명에 의한 실시예의 제조공정을 보인 예시도로서,Figure 2 is an exemplary view showing a manufacturing process of the embodiment according to the present invention,

도2a는 금형장치에 대해 나사부재가 배치된 상태이고,Figure 2a is a screw member is disposed with respect to the mold apparatus,

도2b는 상기 도2a에 대해 고무원단이 적층된 상태이며,Figure 2b is a state in which the rubber fabric is stacked with respect to Figure 2a,

도2c는 상기 도2b에 대해 별도로 성형 준비된 테프론층이 적층된 상태이다.FIG. 2C is a state in which a Teflon layer prepared separately for FIG. 2B is stacked.

도3은 본 발명에 의한 다른 실시예의 제조공정도이다.3 is a manufacturing process diagram of another embodiment according to the present invention.

도3a는 금형장치내에 테프론부재가 안착된 상태이고,Figure 3a is a state in which the teflon member is seated in the mold apparatus,

도3b는 도3a에 대해 나사부재가 고정배치된 상태이며,Figure 3b is a state in which the screw member is fixedly arranged with respect to Figure 3a,

도3c는 도3b에 대해 고무원단을 적층시킨 상태이다.Figure 3c is a state in which the rubber fabric is laminated with respect to Figure 3b.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 고무원단층 20 : 나사부재10: rubber fabric layer 20: screw member

30 : 테프론부재 40 : 금형장치30: teflon member 40: mold apparatus

이하, 본 발명의 바람직한 실시예를 첨부된 도면에 의거하여 보다 구체적으로 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명의 실시상태를 나타낸 일부절결 사시도로서, 중심부에 직물심체에 코팅되어진 고무원단층(10)의 중앙부분에는 계단형태의 머리부(21)와 나사부(22)로 이루어진 나사부재(20)가 결합되어 있으며, 이 나사부재(20)의 계단형 머리부(21)는 고무원단층(10)에 매립되어 있고 나사부(22)는 외부로 돌출되어 있다.Figure 1 is a partially cutaway perspective view showing an embodiment of the present invention, the central portion of the rubber fabric layer 10 is coated on the fabric core in the center of the screw member consisting of a head portion 21 and the screw portion 22 of the step shape ( 20 is coupled, the stepped head portion 21 of the screw member 20 is embedded in the rubber fabric layer 10 and the screw portion 22 protrudes outward.

그리고 고무원단층(10)의 상면에는 내화학성이 양호한 테프론부재(30)가 접착제와 열가압 성형가공에 의해 견고하게 접착되어 다아아프램의 본질을 유지토록 된것이다.In addition, the Teflon member 30 having good chemical resistance is firmly adhered to the upper surface of the rubber fabric layer 10 by an adhesive and a thermoforming molding process to maintain the nature of the diaphragm.

여기서, 고무원단층(10)의 직물심체에 고무 합침된 형태의 원단이나 순수 고무원단으로 제조된 형태의 것을 사용할 수 있으며, 또 2~5매정도의 고무원단이 열가압 성형가공에 의해 일체적으로 적층된 형태이다.Here, the fabric of the rubber core layer (10) can be used in the form of the fabric or rubber-bonded form of the rubber material, and the rubber fabric of about 2 to 5 sheets integrally by the thermo-pressure molding process. In stacked form.

또한, 다이아프램을 제조하기 위한 수단으로 금형장치(40)가 사용되는데, 이러함 금형장치(40)는 통상적으로 히터열을 이용한 열가압 성형장치가 사용된다.In addition, a mold apparatus 40 is used as a means for manufacturing the diaphragm. Such a mold apparatus 40 is typically a thermo-pressure molding apparatus using a heater heat.

이와 같은 본 발명의 제조과정을 도2의 도시에 따라 그 가공 공정순서를 설명하면 다음과 같다.This manufacturing process of the present invention will be described with reference to the processing process sequence according to the Figure 2 as follows.

열가압 성형 금형장치(40)를 구비하여 그 중심부에 계단형 머리부(21)와 나사부(22)로 이루어진 나사부재(20)를 고정배치한 다음(도2a 참조)중간에 직물원단이 구비된 형태의 고무원단(11) 2~5매를 상기 나사부재(20)에 관통되게 적층구비하면서 1차 열가압 성형가공하여 고무원단층(10) 내측으로 나사부재(20)의 머리부(21)가 인써트된 형태의 제품을 얻는다.(도2b 참조)It is provided with a thermoforming mold apparatus 40 and fixedly arranged in the center of the screw member 20 consisting of the stepped head 21 and the screw portion 22 (see Fig. 2a) is provided with a fabric fabric in the middle The head portion 21 of the screw member 20 is formed inside the rubber fabric layer 10 by primary thermally press forming while stacking two to five sheets of rubber fabric 11 having a shape to penetrate the screw member 20. Get the product in the inserted form (see Figure 2b).

상기와 같이 열가압 성형가공으로 나사부재(20)가 인써트된 고무원단층(10)의 상면에 접착제를 도포하고 별도의 전용금형장치에서 성형된 테프론부재(30)를 안착시켜 열가압 성형가공하면 테프론부재(30)는 고무원단층(10)에 견고하게 접착되어 고무원단층(10)의 일면이 테프론부재(30)로서 부호된 본 발명의 산업용 다이아프램을 제조할 수 있는 것이다.If the adhesive is applied to the upper surface of the rubber raw material layer 10 is inserted into the screw member 20 by the thermo-pressure molding process as described above, and seated the teflon member 30 formed in a separate dedicated mold device, the thermo-pressure molding process The Teflon member 30 is firmly adhered to the rubber fabric layer 10 so that one surface of the rubber fabric layer 10 may be manufactured with the industrial diaphragm of the present invention, which is referred to as the teflon member 30.

또한 본 발명의 또다른 실시예를 도3을 참고하여 살펴보면 다음과 같다.Also look at another embodiment of the present invention with reference to FIG.

금형장치(40)에 대해 별도로 성형되어진 테프론부재(30)를 도3a와 같이 안착하여 그 상면에 접착제를 도포한 다음 나사부재(20)를 배치고정하고(도3b 참조) 2~5매의 고무원단(11)을 적층하여(도3c 참조) 열가압 성형가공하여서 본 발명에 의한 산업용 다이아프램을 제조할 수 있는 것이다.The Teflon member 30 formed separately from the mold apparatus 40 is seated as shown in FIG. 3A, an adhesive is applied to the upper surface thereof, and then the screw member 20 is disposed and fixed (see FIG. 3B). By laminating the fabric 11 (see FIG. 3C), the industrial diaphragm according to the present invention may be manufactured by thermoforming molding.

상기와 같은 실시예에서 제조된 산업용 다이아프램은 기존의 고무원단층(10)의 일면에 대해 내화학성이 양호한 테프론부재(30)가 접착구성되어 보호하고 있으므로 폐유, 폐수와 같은 화학성이 강한 물질을 대상으로 하는 순환펌프등과 같은 산업기기에 적용시 다이아프램을 효과적으로 보호하게 되므로 다이아프램의 본질(특성) 즉, 탄력, 복원력, 내구성을 그대로 유지시켜줌은 물론 내구성 증대에 의한 제품의 수명연장효과와 기능의 신뢰성 증대효과를 얻을 수 있으며, 또 제조방법이 간단하여 생산성 향상효과와 제품의 고품위화를 이룩할 수 있는 것이다.Industrial diaphragm manufactured in the above embodiment is because the Teflon member 30 has good chemical resistance to one surface of the conventional rubber fabric layer 10 is bonded to protect the material having a strong chemical resistance such as waste oil, waste water When applied to industrial equipment such as circulating pumps, the diaphragm can be effectively protected, which not only maintains the nature (characteristics) of the diaphragm, that is, its elasticity, resilience and durability, but also extends the lifespan of the product by increasing its durability. The reliability of the function can be increased, and the manufacturing method is simple, resulting in the improvement of productivity and the high quality of the product.

이상에서 본 바와 같이 본 발명은 고무원단층의 일면에 대해 내화학성이 우수한 테프론부재를 접착시키는 산업용 다이아프램의 제조방법에 대한 기술내용으로서 제조공정의 간소화를 이룩할 수 있을 뿐만 아니라 제품의 내구성과 내부식성을 높일 수 있고 기능의 신뢰도를 증대시킬 수 있는 경쟁력을 갖춘 제품을 제공하게 되는 것이다.As described above, the present invention is a technical description of a method for manufacturing an industrial diaphragm for adhering a Teflon member having excellent chemical resistance to one surface of a rubber fabric layer, which can not only simplify the manufacturing process but also provide durability and durability of the product. It will provide a competitive product that can increase the corrosiveness and increase the reliability of the function.

Claims (2)

열가압 성형 금형장치(40)에 나사부재(20)를 배치하면서 고무원단(11) 2~5매를 적층시키고 1차 열가압 성형하여 나사부재(20)가 인써트된 고무원단층(10)을 제조한 다음 상기 고무원단층(10)의 상면에 테프론부재(30)를 안착시켜 2차 열가압 성형하여서 제조 완료하게되는 공정을 특징으로 하는 산업용 다이아프램의 제조방법.Laying two to five rubber fabrics 11 and placing the screw member 20 in the thermoforming die apparatus 40 and primary thermally press forming, the rubber fabric layer 10 into which the screw member 20 is inserted is formed. After manufacturing, the manufacturing method of the industrial diaphragm characterized in that the step of seating the Teflon member (30) on the upper surface of the rubber fabric layer (10) to complete the manufacture by secondary thermocompression molding. 열가압 성형 금형장치(40)를 마련한 후, 이 금형장치(40)의 내측에 테프론부재(30)를 안착시킨후 상면에 나사부재(20)를 고정배치한 다음 고무원단(11) 2~5매를 적층하여 열가압 성형가공으로 고무원단층(10)를 형성하여서 제조 완료하게되는 공정을 특징으로 하는 산업용 다이아프램의 제조방법.After preparing the thermo-pressure molding die apparatus 40, the teflon member 30 is seated inside the mold apparatus 40, and then the screw member 20 is fixedly placed on the upper surface thereof, and then the rubber fabric 11 is 2-5. A method of manufacturing an industrial diaphragm, characterized in that the step of stacking the sheets to form a rubber fabric layer (10) by the thermo-pressure molding process to complete the manufacturing.
KR1019970052969A 1997-10-16 1997-10-16 Manufacturing process of an industrial daiphragm KR100253822B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019970052969A KR100253822B1 (en) 1997-10-16 1997-10-16 Manufacturing process of an industrial daiphragm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019970052969A KR100253822B1 (en) 1997-10-16 1997-10-16 Manufacturing process of an industrial daiphragm

Publications (2)

Publication Number Publication Date
KR19990032040A KR19990032040A (en) 1999-05-06
KR100253822B1 true KR100253822B1 (en) 2000-04-15

Family

ID=19522834

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019970052969A KR100253822B1 (en) 1997-10-16 1997-10-16 Manufacturing process of an industrial daiphragm

Country Status (1)

Country Link
KR (1) KR100253822B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100664616B1 (en) * 2005-02-01 2007-01-04 일신피티에프이공업(주) Butterfly-valve
CN106994758B (en) * 2017-06-01 2023-05-16 南京金三力高分子科技有限公司 Automobile diesel pump tail gas treatment pump film, vulcanization molding die and manufacturing method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04165163A (en) * 1990-10-30 1992-06-10 Toyo Tire & Rubber Co Ltd Diapharagm valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04165163A (en) * 1990-10-30 1992-06-10 Toyo Tire & Rubber Co Ltd Diapharagm valve

Also Published As

Publication number Publication date
KR19990032040A (en) 1999-05-06

Similar Documents

Publication Publication Date Title
CA2282896C (en) Pump diaphragm and method for making the same
CA2309567C (en) Fluoropolymer diaphragm with integral attachment device
US20090233044A1 (en) Carbon Fiber Composite Material, Product and Method
US20020106953A1 (en) Penetration resistant fabric with multiple layer guard plate assemblies and method of making the same
CN1887029A (en) Surface mount heater
CA2255297A1 (en) Resin-impregnated belt for application on papermaking machines and in similar industrial applications
US7396499B2 (en) Multiple layered membrane with fluorine containing polymer layer
US8172207B2 (en) Gas diffuser membrane with coated substrate
EP1010532A3 (en) Printer and the manufacturing method
KR100253822B1 (en) Manufacturing process of an industrial daiphragm
US6080685A (en) Abrasion resistant plastic bonded to a diaphragm
CN102470645A (en) Composite cushioning structure
US20190001603A1 (en) Press pad for a hydraulic heat press, and method for producing it
EP0895486B1 (en) Grafted thermoplastic elastomer barrier layer
EP1304519A3 (en) Process for making a fluid-impermeable layer, and an impermeable hose
MXPA04003109A (en) Radial shaft seal and method for making same.
TW200506138A (en) Low permeability textile substrate for a two-sided coated product
JPS5572950A (en) Ptfe-wrapped gasket
JPH06305091A (en) Cushion material for press
TW461009B (en) Electrostatic chuck with improved temperature control and puncture resistance
JPH10337984A (en) Circuit-containing type plastic card
JPWO2020066347A1 (en) Sealing material for analytical instruments, flow cells using it, detection instruments, analytical instruments
JP3093997B2 (en) Abrasion resistant diaphragm for fluid pump and method of manufacturing the same
KR20190027161A (en) Lateral emitting optical fiber and manufacturing method for thereof
JP3482599B2 (en) Dielectric heating mold for rubber bearing

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20080129

Year of fee payment: 9

LAPS Lapse due to unpaid annual fee