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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

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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

Research on the service life and repair interval of vehicle reducer

Through calculation and statistical results, a preliminary conclusion can be drawn after synthesis: For a large hump with heavy workload, the average number of brakes in one part of the reducer is about 300,000 vehicles per year, and the maximum is up to 500,000; the second part decelerates The average number of braking vehicles per year is about 7 million, and the maximum number of vehicles is 250,000; the average number of braking vehicles per year for the three-part reducer is about 40,000, and the maximum number of vehicles is 70,000.

For small and medium hump reducers, the number of actions will be significantly reduced. Life analysis of the whole machine, wearing parts, and wearing parts. The life of the reducer. The three-part reducer generally has a design life of 100,000 vehicles. Calculated based on the number of vehicles braked by the above-mentioned reducer per year, the minimum useful life is 14 years, and the average useful life is 25 years.

In fact, except for a small amount of TJY-1 and T-2-2 which have been used for 20 years, and T"KZ-1 (A50) has a 16-year history of use, other reducers may have been identified late (for example, TJKZ-B (50) , TJKI-D (50)), there is no long-term use record; some simply can not meet the service life requirements (such as TJKI-C).

But most of the three-segment reducers, generally around 10-12 years, due to the appearance of new types of reducers and overhaul and replacement. The design life of the reducer of the first and second parts has 1 million cycles (for example, TJK (Y) 3 one (50), 2 million cycles (for example, T suit (average 3 one (50), TK4 one (50)), and 30 10,000 vehicles (such as T not K, TJK 3-B (50)). If calculated according to the number of vehicles braked by the above-mentioned reducer per year, one part of the big hump can be used for 2 years, 4 years and 6 years respectively (according to each year * more Braking 500,000 vehicles), the average can be used for 3.3 years, 6.7 years and 10 years (according to the average annual braking of 300,000 vehicles).

The second part can be used for 4, 8, and 12 years less (250,000 more braking times per year), and an average of 6.7 years, 13.3 years, and 20 years can be used (according to the average annual braking number of tens of thousands of vehicles). During the use of the reducer, the wearing parts need to be replaced frequently to ensure the normal use of the reducer. However, the life span of the wearing parts is very different, which directly affects the performance of the reducer.

The life of wear parts of the reducer The strength of the main parts of the reducer can generally meet the design life except for casting and material defects. However, the failure and performance degradation of the reducer are mostly caused by excessive wear of the wearing parts. The following analyzes several wear parts that have the greatest impact on the performance of the reducer.

In addition to TJKI-c and TJKI-D using 50kg/m rails, the other reducers are mostly 60mm steel rails. The newly produced TJK3-B50 reducer adopts 75k left m rail reform. According to statistics, the brake rail with 50k leaving m can wear 3.5 to 450,000 vehicles; the brake rail with 60 k leaving m can wear 5.0 to 600,000 vehicles; the brake rail with 75 k leaving m can wear 65 to 750,000 vehicles; in large and medium-sized For the hump, the 60kg/m brake rail can be used for 1 to 3 years in the first and second parts; 8 to 12 years in the three parts. The 50kg/m brake rail can only be used for 6 to 8 years in the three parts, and the overhaul period is too short, so it is not recommended.

Sleeper plates and rail rubber pads The reducer sleeper plate bears the impact force of the rail falling when the reducer is relieved and prevents the reducer from crawling and floating on the side. It is also subject to the positive pressure of the passing vehicle when it is not braking. The sleepers on the main line are more vulnerable to damage. In addition, the rail rubber pad of the original reducer is not easy to replace, and the rubber pad is damaged or not replaced in time after aging, which may easily cause damage to the sleeper plate. After the sleeper plate is damaged, because it is not easy to repair and replace, it will often cause the reducer to be overhauled in advance.

Therefore, the life of the sleeper plate often determines the life of the reducer. The life of ordinary sleeper plates is generally 100,000 vehicles; the life of sleeper plates with abraded sides and sleeper grooves increased by iron plates can generally reach 200,000 vehicles. If you need to increase the life of the sleeper plate, you need to use a combined sleeper plate, that is, the worn side surface and the sleeper groove as replaceable parts. According to calculation and analysis, the life of the combined sleeper plate can reach 400,000 vehicles or more. TJK3-B50 reducer adopts combined sleeper plate. The life of rail rubber pads is generally 500,000 to 600,000 vehicles, so the rubber pads need to be replaced during medium repairs. The mid-repair period of TJK3-B50 reducer exceeds 10 to 1.2 million vehicle trips, so the rubber backing plate needs to be replaced during the period. For this reason, the rubber backing plate of TIK3-B50 reducer adopts the normal-line general type for replacement.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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