Search This Blog

What are the advantages of CNC machining of radiator parts?

For friends who have been in contact with the radiator component industry, they often see or hear "CNC machining", but too much exposure does not necessarily mean that many people understand. In fact, many questions are still about CNC machining. What are the advantages? Let's take a closer look. CNC machining is an index-controlled machine tool machining, which is a method of using digital information to control the machining process. Traditional mechanical processing is done manually by machine tools. During processing, the mechanical cutter is shaken to cut metal, and the accuracy is measured with calipers and other tools. However, traditional artificial intelligence processing is far from being able to meet the needs of production development. Therefore, the emergence of CNC machining provides the possibility for the standardization, precision and efficiency of mechanical product processing. The CNC machining process in the radiator component industry also shines. The

Investment Casting Materials and Manufacturing Process

Mold material The performance of the molding material should not only ensure the convenient production of investment molds with accurate dimensions and high surface finish, good strength and light weight, but also create conditions for the manufacture of mold shells and good castings. Molding materials are generally formulated with waxes, natural resins and plastics (synthetic resins). All mold materials mainly prepared with wax materials are called wax-based mold materials, and their melting point is low, 60~70 ° C; all mold materials mainly prepared with natural resins are called resin-based mold materials, with a slightly higher melting point, about 70 °C. ~120℃. invest-casting.com   Precision Investment Castings China prototype company service include :  High Quality Investment Casting Parts Custom , Lost Wax Investment Casting Sand Casting , Lost Foam Casting , Gravity Casting , Die Casting , Graphite Casting , Casting Moldsmanufacturers . Manufacture of Folding Investments In t

알루미늄 합금 다이캐스팅의 단점을 해결하는 것이 편리합니다!

알루미늄 합금 다이캐스팅은 현재 현재의 전자제품 , 자동차 , 생활필수품 등 많은 산업과 분야에서 널리 사용되고 있습니다 . 그러나 알루미늄 합금 다이캐스팅에서 자주 발생하는 몇 가지 결함 및 해결 방법은 다음과 같습니다 .   알루미늄 합금 다이캐스팅   1. 불순물   알루미늄 합금 다이 캐스팅의 불순물 문제는 주로 특정 온도에서 알루미늄 , 규소 및 다량의 철 , 망간 , 크롬 및 기타 화합물을 포함하는 결정립과 일부 산화물로 구성됩니다 .   해결책 : 알루미늄 잉곳의 조성을 엄격하게 제어하고 , 제련로의 난로를 정기적으로 청소하고 , 정기적으로 슬래그를 처리하면 문제를 해결할 수 있습니다 .   2. 구강 문제   다공성은 다이캐스팅 부품의 내부 또는 표면에 나타나는 다양한 크기의 구멍을 말하며 , 이는 다이캐스팅 부품의 경도 부족으로 이어져 표면의 외관에 영향을 줍니다 .   Solution: 적절한 정제제를 사용하여 모공을 처리하고 , 공정을 조정하고 , 저속을 적절하게 줄이고 , 이형제가 너무 많이 분사되어 모공 문제가 해결되지 않는지 확인하십시오 .   3. 균열 문제   균열은 알루미늄 합금 다이캐스팅의 매트릭스가 파괴되고 , 외력의 작용에 따라 확장되는 경향이 있는 선형 또는 기타 라인인 기다란 틈이 형성되는 것을 의미합니다 .   솔루션 : 합금 조성을 올바르게 제어하고 , 냉각수 회로를 늘리고 , 알루미늄 합금 다이캐스팅의 구조를 변경하고 , 사출 위치를 변경하거나 증가시키면 해결할 수 있습니다 . PINJIN 서비스에는 다음이 포함됩니다 . 알루미늄 다이캐스팅 , 아연 다이캐스팅 , 마그네슘 다이캐스팅 , 투자 주조 , 모

Urea for vehicles is a heavy-duty diesel vehicle that meets the National IV emission standards

<p style=”margin: 0px; font-family: Times New Roman; line-height: 22px; white-space: normal;”><span style=”margin: 0px; font-size: 14pt;”>Urea for vehicles is A must-have product for heavy-duty diesel vehicles to meet the National IV emission standards. Urea for vehicles refers to an aqueous urea solution with a urea concentration of 32.5% and ultrapure water as the solvent. The raw materials are urea crystals and ultrapure water. For heavy-duty trucks, buses and other diesel vehicles to meet the National IV emission standards, a suitable SCR system must be selected for exhaust gas treatment, and this system must use urea solution to treat the nitrogen oxides in the exhaust gas. Therefore, vehicle urea solution has become an essential product for heavy-duty trucks and buses to meet the National IV emission standards. <br style=”margin: 0px;” />&nbsp;&nbsp;&nbsp;&nbsp; SCR is the best choice for reducing emissions in China. At present, the current domestic diesel national standard GB19147-2009 requires a sulfur content of ≤350ppm, while the ECR-DOC technology requires a sulfur content of oil products below 10ppm, so there is no promotion condition in China for the time being. SCR can withstand 350ppm of sulfur-containing oil, so it has a technical basis for promotion. Because the fuel economy of the National IV engine using SCR technology is better than EGR technology, the engine changes are small, the fuel and oil requirements are lower, the technology upgrade continuity has advantages, the SCR catalyst has good durability and there is no catalyst blockage Therefore, SCR technology is the most suitable technology route for the emission reduction of heavy diesel vehicles in China's national conditions. <br style=”margin: 0px;” />&nbsp;&nbsp; Urea for vehicles is an aqueous urea solution with a concentration of 32.5% and a solvent of ultrapure water. The raw materials for production are urea crystals and ultrapure water. The key point is the purity of the raw materials . From the perspective of the production process, although the purity requirements for the raw material of urea for vehicles are higher than the requirements for general industrial use, the current domestic process can already meet the actual application needs. The production process of automotive urea is not sufficient to build a high barrier to entry. <br style=”margin: 0px;” />  The domestic vehicle urea is mainly purified from industrial urea. The main principles are: 1) When the temperature is 70-75℃, the urea is hydrolyzed in the aqueous solution. 2) When the temperature is below 30°C, urea will crystallize from the aqueous solution again. 3) Each time of hydrolysis and crystallization, its purity will be greatly improved. Generally, once industrial grade urea is used for hydrolysis and crystallization, it can meet the requirements of automotive urea standards, and the output ratio is 1.5:1. <br style=”margin: 0px;” />  Urea for vehicles must use first-class ultrapure water in the electronics industry. Because the SCR catalyst carrier is prone to metal ion poisoning and loses its catalytic effect, the automotive urea solution must use first-grade ultrapure water in the electronics industry (resistivity ≥18MΩ?cm). The car urea solution will start to freeze at -11°C, and it will freeze completely at -20°C in actual use. The current technology is to reduce the freezing point of the solution by adding a modifier, and adding a heating device to prevent the solution from freezing. </span></p><p style=”margin: 0px; font-family: Times New Roman; line-height: 22px; white-space: normal;”><span style=”margin: 0px; font-size: 14pt;”>Urea solution for vehicles (AdBlue) is a solution prepared with high-purity urea without any other additives and pure water. The urea content in the solution is 32.5% (mass fraction). Most domestic and foreign heavy-duty diesel engine manufacturers have adopted SCR (Selective Catalytic Reduction) technology to meet the requirements of Euro IV and Euro V motor vehicle emission standards. Vehicles that choose SCR technology must add urea solution as a catalytic reducing agent to make the vehicle meet the emission standards. <br style=”margin: 0px;” />&nbsp; &nbsp; &nbsp; Diesel engine exhaust gas treatment fluid (commonly known as: automobile urea, automobile urea, automobile environmental protection urea), called AdBlue in China and Europe, and called in America It is DEF and is called ARLA32 in Brazil. AdBlue is a high-purity transparent liquid composed of 32.5% high-purity urea and 67.5% deionized water, with a slight ammonia smell. If it splashes, the water evaporates and crystals form. AdBlue is used in cars, trucks, buses and heavy-duty non-road use diesel engine vehicles equipped with SCR (vehicle selective catalytic reduction exhaust gas aftertreatment) system. It is a consumable that must be used in SCR technology. The harmful nitrogen oxides emitted by diesel engines are converted into harmless water vapor and nitrogen. The main components of the SCR system include catalyst, AdBlue injection device, AdBlue container and AdBlue dose controller. Almost all heavy-duty vehicle manufacturers in Europe, the United States, and Asia, including China, also equip their vehicles with selective catalytic reduction systems and AdBlue working fluids to meet the new nitrogen oxide emission standards (such as Euro 4, Euro 5) AdBlue and Under the combined effect of SCR technology, it can optimize engine performance and fuel consumption, reduce diesel consumption by up to 6%, and significantly reduce costs. The average consumption of AdBlue is 5% of general diesel consumption, which is about 1.5 liters per 100 kilometers of highway driving. AdBlue can only be used to configure the engine combination of the SCR system, because it is neither a fuel nor a fuel additive. AdBlue implements standards in compliance with ISO22241, DIN70070 and CEFIC regulations to ensure the effective operation of the SCR system. AdBlue is not harmful to the environment and is classified as a transportable liquid with the lowest risk. <br style=”margin: 0px;” /><br style=”margin: 0px;” />   At present, domestic automotive urea production is dominated by small and medium-sized private enterprises, and channel sales capabilities are lacking. The domestic automotive urea is mainly produced by enterprises such as Jiangsu Klanso, Liaoning Rundi, Jingmai Chemical, and Beijing Yili. The production capacity of each company is between 100,000 to 300,000 tons per year. Among them, Jiangsu Klanzol and Liaoning Rundi have an annual production capacity of 300,000 tons, and have a series of modifier patents for the problem of low-temperature solidification of urea for vehicles. Jiangsu Klanzo has exported the urea solution for Klanzo vehicles to Russia, Eastern Europe and South America. But for the current small private enterprises, the inability to master the core sales channels is the fundamental weakness of their development. <br style=”margin: 0px;” />&nbsp;Guangdong Chuanghongyu urea energy-saving products came into being. For details, please contact 136 8021 1314&nbsp;</span></p>&lt;div class=”content” style=” margin: 0px;”>&lt;/div>

Link to this article:Urea for vehicles is a heavy-duty diesel vehicle that meets the National IV emission standards

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.:Cnc Machining,Thank

Contact Us


Get In Touch or Get A Quote

Need an expert? you are more than welcomed to
leave your contact info and we will be in touch shortly
YOUR COMPANY
Sifangyuan Industrial Park, Xinshapu, Huaide Community
Humen town, Dongguan City, Guangdong Province. 
860769-82886112
860769-82886112