KR100507363B1 - coating manufacture method of producing for steel pipe - Google Patents
coating manufacture method of producing for steel pipe Download PDFInfo
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- KR100507363B1 KR100507363B1 KR10-2003-0003283A KR20030003283A KR100507363B1 KR 100507363 B1 KR100507363 B1 KR 100507363B1 KR 20030003283 A KR20030003283 A KR 20030003283A KR 100507363 B1 KR100507363 B1 KR 100507363B1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03543—Mice or pucks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
본 발명은 철관 코팅재 제조방법에 관한 것으로, 채취한 모래를 5mm 이하로 분쇄하는 제1공정과; 채취한 티타늄을 25mm 이하로 분쇄하는 제2공정과; 압축강도가 180-500 ㎏/㎠ 이고 콘크리트 단위 중량이 2400-3050 ㎏/㎥ 의 조건을 충족시키도록, 시멘트 313-618 ㎏/㎥와, 제1공정을 통해 구비된 모래 492-648 ㎏/㎥와, 제2공정을 통해 구비된 티타늄 1755-1904 ㎏/㎥와, 물 185 ㎏/㎥와, 혼화제 4.7-9.3 ㎏을 구비하여 혼합하는 제3공정으로 이루어진 철관 코팅재 제조방법을 구비하였다.The present invention relates to a method for manufacturing an iron pipe coating material, comprising: a first step of crushing collected sand to 5 mm or less; A second step of grinding the collected titanium to 25 mm or less; Cement 313-618 ㎏ / ㎥ and sand 492-648 ㎏ / ㎥ through the first process, so that the compressive strength is 180-500 kg / ㎠ and the concrete unit weight meets the conditions of 2400-3050 kg / ㎥ And, 1755-1904 kg / ㎥ of titanium provided through the second process, 185 kg / ㎥ of water and 4.7-9.3 kg of admixtures were provided to prepare a steel pipe coating material consisting of a third step of mixing.
그러므로, 철광석과 비슷한 중량을 가지는 티타늄을 코팅재에 혼합시키므로 코팅재의 비중을 높여서 철관의 부력을 방지시키는 것은 물론, 티타늄의 특성상 흡수율이 적고 산화되지 않으므로 물속에서 장기간 경과되어도 녹이 슬지 않으며, 이에 따라 코팅재 및 철관의 내구성을 향상시킬 수 있도록 하였다.Therefore, since titanium having a weight similar to that of iron ore is mixed with the coating material, the specific gravity of the coating material is increased to prevent buoyancy of the iron pipe, and due to the characteristics of titanium, the absorption rate is low and does not oxidize, so that it does not rust even after prolonged period in water. The durability of the steel pipe can be improved.
Description
본 발명은 해저에 매설되는 송유관, 가스관 등의 철관에 관한 것으로, 특히 철관 코팅재 제조방법에 관한 것이다.The present invention relates to iron pipes, such as oil pipes and gas pipes embedded in the seabed, and more particularly, to a method for producing a steel pipe coating material.
송유관이나 가스관 등의 철관을 해저에 매립설치하려면 먼저 해저에 철관이 매설될 방향에 따라 관로를 형성시키고, 이에 철관을 매설시키게 되는데, 철관을 해저에 매설하기 전에 부식 방지등의 철관 보호 목적으로 그 외주면에 콘크리트나 몰탈을 코팅시키게 된다.In order to install iron pipes such as oil pipelines and gas pipes on the seabed, first, the pipelines are formed according to the direction in which the steel pipes are to be buried in the seabed, and the steel pipes are buried therein. Concrete or mortar is coated on the outer circumferential surface.
그런데 이와 같이 콘크리트나 몰탈이 코팅된 철관을 해저에 매설할시 가장 큰 문제는 철관의 부력 발생이며, 따라서 이러한 종래 철관을 해저에 매설할시 부력이 발생되어 매설작업이 매우 힘든 문제가 있었다.However, the biggest problem when embedding concrete or mortar-coated iron pipe on the seabed is the buoyancy of the steel pipe, and thus buried buoyancy occurs when embedding the conventional steel pipe on the seabed was a very difficult problem.
이에 따라 본 출원인은 철관의 비중을 높여서 부력이 방지되도록 철관 코팅재를 개발하였는데, 콘크리트 코팅재에 비중이 큰 철광석을 혼합하여서 코팅재의 중량을 증가시켰으며, 따라서 비중이 증가된 이러한 코팅재를 철관에 코팅시켜서 철관의 부력을 방지시키므로 철관의 매설작업을 용이하게 하였다.Accordingly, the applicant has developed a steel pipe coating material to prevent buoyancy by increasing the specific gravity of the steel pipe, by increasing the weight of the coating material by mixing the iron ore having a specific gravity in the concrete coating material, and thus coating the coated steel pipe with an increased specific gravity The buoyancy of the steel pipe is prevented to facilitate the buried work of the steel pipe.
그런데 이러한 종래 철관 코팅재 제조방법은, 코팅재에 포함된 철광석에 의해 철관의 부력을 감소시키는데는 효과가 있으나, 매설된 상태에서 장기간 경과시 철광석이 산화되어 녹이 발생되었으며, 이에 따라 코팅재 및 이 코팅재에 의해 보호되는 철관의 내구성 저하되는 문제가 발생되었다.By the way, the conventional method for producing a steel pipe coating material is effective to reduce the buoyancy of the iron pipe by the iron ore contained in the coating material, but the iron ore was oxidized after a long time in the buried state, rust was generated, according to the coating material and this coating material There was a problem of deterioration in durability of the protected steel pipe.
상술한 문제를 해결하기 위한 본 발명의 목적은, 코팅재의 비중을 높여서 철관의 부력을 방지시킬 뿐 아니라 물속에서 장기간 경과되어도 산화되지 않도록 한 철관 코팅재 제조방법을 제공하는데 있다.An object of the present invention for solving the above problems is to provide a method for producing a steel pipe coating material to increase the specific gravity of the coating material to prevent buoyancy of the iron pipe as well as to prevent oxidation even after prolonged in water.
이와 같은 목적을 달성하기 위한 본 발명 철관 코팅재 제조방법은, 철관 코팅재 제조방법에 있어서, 채취한 모래를 5mm 이하로 분쇄하는 제1공정과; 채취한 티타늄을 25mm 이하로 분쇄하는 제2공정과; 압축강도가 180-500 ㎏/㎠ 이고 콘크리트 단위 중량이 2400-3050 ㎏/㎥ 의 조건을 충족시키도록, 시멘트 313-618 ㎏/㎥와, 제1공정을 통해 구비된 모래 492-648 ㎏/㎥와, 제2공정을 통해 구비된 티타늄 1755-1904 ㎏/㎥와, 물 185 ㎏/㎥와, 혼화제 4.7-9.3 ㎏을 구비하여 혼합하는 제3공정으로 이루어진 것을 특징으로 한다.The iron pipe coating material manufacturing method of the present invention for achieving the above object, In the iron pipe coating material manufacturing method, the first step of grinding the collected sand to 5mm or less; A second step of grinding the collected titanium to 25 mm or less; Cement 313-618 ㎏ / ㎥ and sand 492-648 ㎏ / ㎥ through the first process, so that the compressive strength is 180-500 kg / ㎠ and the concrete unit weight meets the conditions of 2400-3050 kg / ㎥ And a third step of mixing titanium 1755-1904 kg / m 3 provided through the second step, 185 kg / m 3 of water, and 4.7-9.3 kg of admixture.
따라서, 철광석과 비슷한 중량을 가지는 티타늄을 코팅재에 혼합시키므로 코팅재의 비중을 높여서 철관의 부력을 방지시키는 것은 물론, 티타늄의 특성상 흡수율이 적고 산화되지 않으므로 물속에서 장기간 경과되어도 녹이 슬지 않으며, 이에 따라 코팅재 및 철관의 내구성을 향상시킬 수 있는 등의 효과가 있다.Therefore, since titanium having a weight similar to that of iron ore is mixed with the coating material, the specific gravity of the coating material is increased to prevent buoyancy of the iron pipe, and due to the characteristics of titanium, the absorption rate is small and does not oxidize, so that it does not rust even after prolonged in water. There is an effect such as to improve the durability of the steel pipe.
본 발명의 구체적 특징 및 이점은 이하의 설명으로 더욱 명확해 질 것이다.Specific features and advantages of the present invention will become more apparent from the following description.
본 발명 코팅재 제조방법은, 채취한 모래를 5mm 이하로 분쇄하는 제1공정, 채취한 티타늄을 25mm 이하로 분쇄하는 제2공정, 압축강도가 180-500 ㎏/㎠ 이고 콘크리트 단위 중량이 2400-3050 ㎏/㎥ 의 조건을 충족시키도록, 시멘트 313-618 ㎏/㎥와, 제1공정을 통해 구비된 모래 492-648 ㎏/㎥와, 제2공정을 통해 구비된 티타늄 1755-1904 ㎏/㎥와, 물 185 ㎏/㎥와, 혼화제 4.7-9.3 ㎏을 구비하여 혼합하는 제3공정으로 이루어지며, 송유관이나 가스관을 해저에 매립설치하기 전에 그 외주면에 코팅처리된다.The coating material manufacturing method of the present invention, the first step to crush the collected sand to 5mm or less, the second step to crush the collected titanium to 25mm or less, the compressive strength is 180-500 kg / ㎠ and the concrete unit weight is 2400-3050 Cement 313-618 kg / m3, 492-648 kg / m3 of sand provided through the first process, titanium 1755-1904 kg / m3 provided by the second process to satisfy the conditions of kg / m3 and , 185 kg / m 3 of water and 4.7-9.3 kg of admixtures, comprising a third step of mixing and coating the outer circumferential surface of the oil pipe or gas pipe before being buried in the seabed.
이러한 코팅작업을 위해서는 슬러지 상태의 콘크리트가 제조되어야 하며, 제조된 코팅재는 코팅기의 호퍼에 투입된 후 철관 외주면에 분사되어 철관 외주면을 코팅시키게 된다.For such a coating operation, sludge concrete should be manufactured, and the prepared coating material is injected into the hopper of the coating machine and then sprayed on the outer circumferential surface of the steel pipe to coat the outer circumferential surface of the steel pipe.
상술한 콘크리트 코팅재는 다음과 같은 방법으로 제조된다.The concrete coating material described above is manufactured by the following method.
먼저 채취한 모래를 5mm 이하로 분쇄하는 제1공정이 있게 되며, 다음 채취한 티타늄을 25mm 이하로 분쇄하는 제2공정이 있게 된다.The first step is to grind the collected sand to 5 mm or less, and the second step is to grind the collected titanium to 25 mm or less.
이와 같이 제1공정 및 제2공정을 통해 규정된 크기 이하의 모래 및 티타늄이 준비되면, 특정한 조건을 만족시키도록 여러가지 구비된 재료를 혼합시키는 제3공정이 있게 된다.As such, when sand and titanium having a prescribed size or less are prepared through the first and second processes, there is a third process of mixing various materials provided to satisfy specific conditions.
제3공정에서 사용되는 재료는 상술한 모래, 티타늄을 포함하여, 시멘트, 물, 혼화제가 사용된다.여기서 혼화제는, 현재 다양한 종류가 사용되고 있는바, (1) AE(Air Entraining)제, 감수제, AE감수제와, (2) 고성능감수제, 유동화제와, (3) 흡수성 폴리머와, (4) 초지연제와, (5) 수중 콘크리트용 혼화제와, (6) 방청제와, (7) 수축저감제와, (8) 수화열억제제와, (9) 팽창제와, (10) 방동.내한제 등이 구비된다.이러한 다양한 혼화제 중, 현재 콘크리트용 혼화제의 주류를 점하고 있는 감수제, AE감수제를 사용하여서 강도를 증가시키고 워커빌리티를 향상시키도록 할 수 있다.As the materials used in the third process, cement, water and admixtures are used, including sand and titanium described above. Here, various kinds of admixtures are currently used, including (1) AE (Air Entraining) agents, water reducing agents, AE water reducing agent, (2) high performance water reducing agent, fluidizing agent, (3) water absorbent polymer, (4) super delay agent, (5) water concrete admixture, (6) rust inhibitor, (7) shrinkage reducing agent, , (8) hydration heat inhibitors, (9) swelling agents, (10) anti-rust and cold-resistant agents, etc. Among these various admixtures, strengths are increased by using water-reducing agents and AE-reducing agents that currently dominate the admixtures for concrete. Increase and improve workability.
이러한 재료들이 준비되면 특정한 조건을 만족시키도록 상술한 재료들을 적절히 혼합시키게 되는바, 가스관이나 송유관 등의 철관에 코팅되는 콘크리트 코팅재는, 보통 압축강도가 180-500 ㎏/㎠ 이고, 콘크리트 단위 중량이 2400-3050 ㎏/㎥ 의 조건을 충족되어야 한다.When such materials are prepared, the above-described materials are properly mixed to satisfy specific conditions. The concrete coating material coated on the steel pipe such as gas pipe or oil pipe usually has a compressive strength of 180-500 kg / cm 2, The conditions of 2400-3050 kg / m 3 should be met.
따라서 이러한 조건을 충족시키기 위해서 시멘트 313-618 ㎏/㎥을 구비하고, 제1공정을 통해 5mm이하로 분쇄된 모래 492-648 ㎏/㎥을 구비하며, 제2공정을 통해 25mm이하로 분쇄된 티타늄 1755-1904 ㎏/㎥를 구비한다.Therefore, in order to satisfy these conditions, cement 313-618 kg / ㎥ is provided, and the sand is crushed to 5 mm or less through the first process 492-648 kg / ㎥, and titanium crushed to 25 mm or less through the second process. 1755-1904 kg / m 3.
그리고 물 185 ㎏/㎥와, 혼화제 4.7-9.3 ㎏을 구비한 후 이들을 혼합시키게 된다.And 185 kg / m 3 of water and 4.7-9.3 kg of admixtures are provided and these are mixed.
이와 같이 본 발명 제조방법에 의해 상술한 콘크리트 코팅재가 구비되면, 이를 코팅기의 호퍼에 투입한 후 철관 외주면에 분사하므로 코팅 작업을 하게 된다.Thus, when the above-described concrete coating material is provided by the manufacturing method of the present invention, it is injected into the hopper of the coating machine and then sprayed on the outer circumferential surface of the iron pipe to perform the coating work.
이러한 본 발명에 따른 콘크리트 코팅재는 상술한 특정한 배합 비율을 가지므로 코팅재의 일정한 조건, 즉 압축강도가 180-500 ㎏/㎠ 이고 콘크리트 단위 중량이 2400-3050 ㎏/㎥ 의 조건을 항상 충족시킬 수 있게 된다.Since the concrete coating material according to the present invention has a specific compounding ratio described above, it is possible to always meet the conditions of the coating material, that is, the compressive strength is 180-500 kg / ㎠ and the concrete unit weight is 2400-3050 kg / ㎥. do.
따라서 이러한 조건을 충족시키는 콘크리트 코팅재를 철관에 코팅시키게 되므로 제품에 하자가 발생되지 않게 되어, 제작사의 신뢰도를 향상시킬 수 있게 된다.Therefore, since the concrete coating material that meets these conditions is coated on the steel pipe, no defect occurs in the product, thereby improving the reliability of the manufacturer.
또한 본 발명 콘크리트 코팅재에 혼합된 티타늄에 의해 여러가지 장점을 가지게 되는데, 티타늄은 공지된 바와 같이 내구성 및 내수성이 강하고, 철광석에 비할만큼 중량이 비교적 크며, 친환경적일 뿐 아니라, 흡수율이 적고, 동결 융해 저항성에 강하다.In addition, the present invention has various advantages due to the titanium mixed in the concrete coating material. As is well known, titanium has strong durability and water resistance, is relatively large in weight compared to iron ore, and is environmentally friendly, and has low absorption rate and freeze-thawing resistance. Strong in
따라서 티타늄이 혼합된 코팅재는 비중이 커지게 되고, 이러한 코팅재를 철관에 코팅시키면 철관의 부력이 감소되며, 이에 따라 해저에서 철관의 부력이 방지되어 매설 작업을 용이하게 할 수 있게 된다.Therefore, the coating material in which titanium is mixed increases the specific gravity, and coating the coating material on the iron pipe reduces the buoyancy of the steel pipe, thereby preventing buoyancy of the steel pipe on the seabed, thereby facilitating the buried work.
그리고 티타늄은 철광석과는 달리 산화되지 않으므로 해저에 장기간 매설되어도 녹이슬지 않으며, 이에 따라 코팅재 및 철관의 내구성을 향상시키게 된다.And since titanium is not oxidized unlike iron ore, even if it is buried for a long time in the sea floor, it will not rust, thereby improving the durability of the coating material and the iron pipe.
또한 티타늄은 흡수율을 매우 적기 때문에 지상에 매설된 관의 동파를 방지할 수 있다. 즉, 콘크리트는 흡수율이 좋기 때문에 지상에 매설시 수분을 비교적 많이 흡수하게 되며, 겨울철 기온이 급격히 떨어지면 흡수된 수분이 얼면서 팽창되어 매설된 관을 동파시키게 된다.In addition, titanium has a very low absorption rate, which prevents freezing of pipes buried in the ground. That is, concrete absorbs a lot of moisture when buried in the ground because the absorption rate is good, and when the winter temperature drops sharply, the absorbed moisture freezes and expands to bury the buried pipe.
따라서 이러한 관 둘레에 본 발명 티타늄이 포함된 코팅재를 코팅시킨다면 흡수율을 저하시킬 수 있으며, 결국 겨울철 관의 동파를 방지할 수 있게 된다.Therefore, if the coating material containing titanium of the present invention is coated around the tube, the absorption rate may be lowered, and thus the freezing of the winter tube may be prevented.
이러한 본 발명 제조방법에 의한 철관 코팅재는 상술한 바와 같이 가스관, 유공관 등의 철관을 코팅시키는데 사용할 뿐 아니라, 기타 콘크리트 구조물에도 적용할 수 있다.Iron pipe coating material according to the method of the present invention can be used to coat not only iron pipes such as gas pipes, perforated pipes, as described above, but also can be applied to other concrete structures.
이상에서와 같은 본 발명에 따른 철관 코팅재 제조방법에 의하면, 철광석과 비슷한 중량을 가지는 티타늄을 코팅재에 혼합시키므로 코팅재의 비중을 높여서 철관의 부력을 방지시키는 것은 물론, 티타늄의 특성상 흡수율이 적고 산화되지 않으므로 물속에서 장기간 경과되어도 녹이 슬지 않으며, 이에 따라 코팅재 및 철관의 내구성을 향상시킬 수 있는 등의 효과가 있다.According to the iron pipe coating material manufacturing method according to the present invention as described above, since titanium having a weight similar to iron ore is mixed in the coating material to increase the specific gravity of the coating material to prevent buoyancy of the iron pipe, of course, due to the properties of titanium is less absorption and not oxidized. It does not rust even after prolonged periods in water, thereby improving the durability of the coating material and the iron pipe.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101554298B1 (en) * | 2015-02-06 | 2015-09-18 | 주식회사 비와이에스 | coating material for steel pipe and method of coating for steel pipe and coated steel pipe |
| KR101636920B1 (en) | 2015-02-17 | 2016-07-08 | 부양산업 주식회사 | Method of coating for steel pipe and coated steel pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101554298B1 (en) * | 2015-02-06 | 2015-09-18 | 주식회사 비와이에스 | coating material for steel pipe and method of coating for steel pipe and coated steel pipe |
| KR101636920B1 (en) | 2015-02-17 | 2016-07-08 | 부양산업 주식회사 | Method of coating for steel pipe and coated steel pipe |
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