产品描述
产品描述
structural carbon steel :45# with details in under sheet :
| Standard No. | Alloy No. | Chemical compositions(%) | ||||||
| C | Cr | Mn | Ni | P | S | Si | ||
| GB/T699-1999 | 45# | 0.42~0.50 | ≤0.25 | 0.50~0.80 | ≤0.25 | ≤0.035 | ≤0.035 | 0.17~0.37 |
| Mechanical Property |
Tensile Strength(Mpa) | Yeild Strength(Mpa) | Elongation(%) | Contraction of area Z(%) | ||||
| ≥600 | ≥355 | ≥16 | ≥40 | |||||
The correlation between properties and parameters-S45C (JIS)-SAE1045(Aisi)-SM45 of No. 45 steel(45 steel) was studied:
No. 45 steel is a carbon structural steel with 0.45% carboncontent. It is characterized by low price, good cutting performance, high hardness after quenching, good strength, toughness and wear resistance after quenching and temperingtreatment, is widely used in manufacturing structural partsand low-grade plastic mold. “45 steel” is a popular name, thesymbol is generally recorded as”45 #”. In fact GB standardsteel number is”45″, it is not a sequential number, read as”45steel” is not very accurate. Ingredient code 45 steels of similar designation are S45C (JIS) and 1045(Aisi) . In addition, ourcountry metallurgical technology standard has SM45 brandnumber to express the plastic mold use specially. Comparedwith 45 steel, SM45 has lower phosphorus and sulfur contentand better steel purity.
| Standards | YB/T 094 | AISI | JIS G4051 |
| Alloy No. | SM45 | 1045 | S45C |
| C | 0.42-0.48 | 0.43-0.50 | 0.42-0.48 |
| Si | 0.17-0.37 | 0.15-0.35 | |
| Mn | 0.50-0.80 | 0.60-0.90 | 0.60-0.90 |
| P | <0.030 | <0.030 | <0.030 |
| S | <0.035 | <0.035 | <0.035 |
Recommended process specification for heat treatment andhardness: quenching temperature 820 – 860″ C, water-oroil-cooled, hardness 250 HRC. Recommended tempering pro-cess specifcation: tempering temperature is 500 – 560″ C, aircooling, hardness is 25 – 33HRC. Tempering in this temperature range is the tempering treatment, Quenching and tempering make the strength, plasticity and toughness of 45 steelget a good balance, the comprehensive performance is good,can adapt to the alternating load environment. After quench-ing and tempering, the surface hardness of 45 steel is low anddoes not wear well. So commonly used quenching and tempering + surface quenching to improve the surface hardnessof parts.
| Tempering temperature | After quenching | Unit centigrade | |||||
| 200 | 300 | 400 | 500 | 550 | 600 | ||
| Hardness HRC |
57 | 55 | 50 | 41 | 33 | 26 | 22 |
| Mechanical properties (GB/T 699-1999) | |||
| Sample size | mm | 25 | |
| Heat treatments recommended | Normalizing | ºC | 850 |
| 淬火 | ºC | 840 | |
| 回火 | ºC | 600 | |
| Mechanical properties | Tensile strongth | Mpa | ≥600 |
| Strong yield | Mpa | ≥355 | |
| Elongation | Mpa | ≥16 | |
| Section shrinkago | Mpa | ≥40 | |
| Impact | Mpa | ≥39 | |
| Hardness of delivery | HB | ≤229 | |
| HB | ≤197 | ||
Main Products
公司简介
ZheJiang Xihu (West Lake) Dis. Equipment Manufacturing Co, Ltd., located in HangZhou City, ZheJiang Province, is a steel forging manufacturing enterprise specializing in the production of forged round steel, square steel, shaft forgings, ring forgings, cylinder forgings, and forging processing, heat treatment, mechanical processing, and finished parts processing. 0.75 tons to 30 tons of ingot steel can also be supplied. The company has a strong special steel supply channel as support, especially in the special steel forgings more resource advantages, products include “chromium-nick- el-molybdenum steel, bonded steel, carbon steel, stainless steel, spring steel, bearing steel, rolls and other series.”Our company can also ensure flaw detection at all levels according to customer requirements and provide quality certification documents.
Forging Equipment
The main equipment is 2000 tons of hydraulic press, ring rolling machine, 3 tons of forging hammer, 2 tons of forging hammer, 1 ton forging hammer, 750KG forging hammer, 30T heat treatment and temper- ing furnace, lathe, sawing machine and other more than 30 sets of equipment, which can produce
forgings weighing 20Kg-20000Kg. Products are not only widely used in domestic large locomotives, coal machines, petroleum machinery, shipbuilding and other industries, but also exported to Europe, South- east Asia, and other countries and regions, forging products using advanced production technology
“high-power electric CZPT (EF)furnace external refining (LF) vacuum degassing (VD) fast forging annealing (or normalizing) turning, Ensure chemical composition and mechanical property require-ments.
常问问题
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What is the difference between forging and casting?
Forging: It is the process of transforming a CZPT from 1 shape to another. Casting: It is the process of transforming a shapeless liquid metal into a CZPT with a shape. The so-called casting is the process of casting molten metal into a model to obtain a casting. The casting profession focuses on the metal melting process and the control of processes during the casting process. Forging is a plastic forming process in the CZPT state, which can be divided into hot processing and cold processing. Forgings include extrusion, drawing, roughening, punching, and so on. Casting is a CZPT liquid CZPT process, while forging is a CZPT to CZPT process where a CZPT can change its shape into another shape at high temperatures. There are still differences in the shape process and process of the two.
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How to choose high-quality forgings?
In the quality inspection of forgings, there are mainly external observation methods and internal inspection methods. The appearance method, as the name suggests, is to observe the appearance of the product, such as the shape, geometric dimensions, surface condition, etc. of the forging, in order to understand whether it meets the standards and whether there are external defects. Specifically, it is to check whether the external dimensions of the forging meet the specifications and whether there are defects on the surface, such as cracks, wrinkles, bubbles, indentations, pits, impurities, scratches, etc. on the surface of the forging. Internal testing mainly involves analyzing the chemical composition, macroscopic and microscopic structures, and mechanical properties of forgings. This inspection process requires the use of specialized instruments for high magnification inspection, with the aim of checking for any phenomena such as fractures and shrinkage within the forging, as well as defects such as dendrites and white spots, disordered flow lines, and throughflow. It also includes the tensile strength, ductility, hardness, plasticity, and heat resistance temperature of the forging.
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What are the characteristics of the forging process for blank forgings?
The forging process of circular forgings mainly consists of the following processes: pier roughening, elongation, punching, and expanding. The difference between free forging and ring rolling processes is mainly in the process of expanding holes. In the production of ring forgings, free forging is usually used to expand the hole with a horse screw, while ring rolling is mainly used to expand the hole with rolling.
/* 2571 年 1 月 22 日 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| 正在处理对象: | 金属 |
|---|---|
| 造型样式: | 锻造 |
| 成型技术: | Hot Forging |
| 应用: | 机械零件 |
| 材料: | 钢 |
| 热处理: | 回火 |
| 示例: |
US$ 1100/Ton
1 Ton(Min.Order) | |
|---|
| 定制化: |
可用的
| 定制请求 |
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驱动轴在运行过程中如何应对速度和扭矩的变化?
传动轴采用特定的机构和结构,旨在应对运行过程中速度和扭矩的变化。这些机构使传动轴能够适应动力传输的变化需求,同时保持平稳高效的运行。以下详细解释了传动轴如何处理速度和扭矩的变化:
1. 柔性联轴器:
传动轴通常采用柔性联轴器,例如万向节(U型接头)或等速万向节(CV接头),以应对速度和扭矩的变化。这些联轴器提供了灵活性,即使驱动部件和从动部件并非完全对齐,也能使传动轴传递动力。万向节由两个通过十字形轴承连接的轭架组成,允许传动轴各部分之间进行角度运动。这种灵活性可以适应速度和扭矩的变化,并补偿不对中。等速万向节常用于汽车传动轴,它能够在适应工作角度变化的同时保持恒定的旋转速度。这些柔性联轴器能够实现平稳的动力传输,并减少由速度和扭矩变化引起的振动和磨损。
2. 滑动接头:
在某些传动轴设计中,会采用滑动接头来应对长度变化,并适应驱动部件和从动部件之间距离的变化。滑动接头由带有花键或伸缩机构的内外管状部分组成。当传动轴因悬架运动或其他因素而发生长度变化时,滑动接头允许轴伸长或压缩,而不会影响动力传输。通过允许轴向移动,滑动接头有助于防止传动轴在速度和扭矩变化期间出现卡滞或过大的应力,从而确保平稳运行。
3. 平衡:
传动轴需要进行平衡处理,以优化其性能并最大限度地减少因速度和扭矩变化引起的振动。传动轴的不平衡会导致振动,这不仅会影响车内乘员的舒适性,还会加剧传动轴及其相关部件的磨损。平衡处理包括重新分配传动轴上的质量,以实现均匀的重量分布,从而减少振动并提高整体性能。动态平衡通常通过增加或移除少量配重来实现,确保传动轴即使在不同的速度和扭矩负载下也能平稳运行。
4. 材料选择和设计:
传动轴的材料选择和设计在应对速度和扭矩变化方面起着至关重要的作用。传动轴通常采用高强度材料,例如钢或铝合金,这些材料因其能够承受各种运行条件下产生的力和应力而被选中。传动轴的直径和壁厚也经过精心设计,以确保足够的强度和刚度。此外,设计中还考虑了临界转速、扭转刚度和共振抑制等因素,这些因素有助于在速度和扭矩变化期间保持稳定性和性能。
5. 润滑:
适当的润滑对于传动轴应对速度和扭矩的变化至关重要。润滑万向节或等速万向节等连接件可以减少运行过程中产生的摩擦和热量,确保平稳运行并最大限度地减少磨损。充足的润滑还有助于防止部件卡滞,使传动轴能够更有效地适应速度和扭矩的变化。定期进行润滑维护是确保最佳性能和延长传动轴使用寿命的必要措施。
6. 系统监控:
监测传动轴系统的性能对于识别与速度和扭矩变化相关的任何问题至关重要。异常振动、噪音或动力传输变化都可能表明传动轴存在潜在问题。定期检查和维护有助于及早发现并解决问题,从而防止进一步损坏,并确保传动轴持续有效地应对速度和扭矩的变化。
总而言之,传动轴通过柔性联轴器、滑动接头、平衡程序、合适的材料选择和设计、润滑以及系统监控来应对运行过程中速度和扭矩的变化。这些机制和措施使传动轴能够适应不对中、长度变化和功率需求的变化,从而确保在各种应用中实现高效的动力传输、平稳运行并减少磨损。

传动轴如何提升汽车和卡车的性能?
传动轴在提升汽车和卡车的性能方面发挥着重要作用。它们影响车辆性能的各个方面,包括动力输出、牵引力、操控性和整体效率。以下详细解释传动轴如何提升汽车和卡车的性能:
1. 功率输出:
传动轴负责将发动机的动力传递到车轮,使车辆能够前进。通过高效地传递动力,减少动力损失,传动轴确保发动机的动力得到有效利用,从而提升加速性能和整体动力表现。设计精良、动力损失最小的传动轴有助于车辆高效地将动力传递到车轮。
2. 扭矩传递:
传动轴负责将发动机的扭矩传递到车轮。扭矩是驱动车辆前进的旋转力。高质量的传动轴具备良好的扭矩转换能力,确保发动机产生的扭矩能够有效地传递到车轮。这增强了车辆的加速性能、牵引重物的能力以及爬坡能力,从而提升了车辆的整体性能。
3. 牵引力和稳定性:
传动轴对汽车和卡车的牵引力和稳定性至关重要。它们将动力传递至车轮,使车轮能够对路面施加作用力。这使得车辆能够保持牵引力,尤其是在加速或在湿滑或不平坦的路面上行驶时。通过传动轴高效传递动力,确保动力均衡分配至所有车轮,从而增强车辆的稳定性,并改善操控性。
4. 操控性和机动性:
传动轴对车辆的操控性和机动性有着重要影响。它们有助于建立发动机和车轮之间的直接连接,从而实现精准控制和灵敏操控。设计精良、间隙或反冲最小的传动轴有助于对驾驶员的操作做出更直接、更迅速的响应,从而提升车辆的灵活性和机动性。
5. 减轻体重:
传动轴有助于减轻汽车和卡车的重量。采用铝或碳纤维增强复合材料等材料制成的轻质传动轴可以降低车辆的整体重量。重量的减轻提高了功率重量比,从而改善了加速性能、操控性和燃油效率。此外,轻质传动轴还能降低旋转惯量,使发动机转速提升更快,进一步提升性能。
6. 机械效率:
高效的传动轴能够最大限度地减少动力传输过程中的能量损失。通过采用高质量轴承、低摩擦密封件和优化润滑等设计,传动轴可以降低摩擦,并最大限度地减少因内部阻力造成的动力损失。这提高了传动系统的机械效率,使更多动力传递至车轮,从而提升车辆的整体性能。
7. 性能升级:
对于汽车爱好者来说,升级传动轴是一种常见的性能提升方式。升级后的传动轴,例如采用强度更高的材料制成或扭矩容量更大的传动轴,可以承受改装发动机更高的动力输出。这些升级可以提升车辆性能,例如改善加速性能、提高最高速度以及改善整体驾驶动态性能。
8. 与性能改进的兼容性:
性能改装,例如发动机升级、提升动力输出或改变传动系统,通常需要匹配的传动轴。专为承受更高扭矩负载或适应改装后的传动系统配置而设计的传动轴,可确保最佳性能和可靠性。它们使车辆能够有效地利用增加的动力和扭矩,从而提升性能和响应速度。
9. 耐用性和可靠性:
坚固耐用且维护良好的传动轴有助于提高汽车和卡车的耐用性和可靠性。它们的设计旨在承受动力传输过程中产生的应力和负载。优质的材料、适当的平衡和定期维护有助于确保传动轴平稳运行,最大限度地降低故障或性能问题的风险。可靠的传动轴通过提供稳定的动力输出和最大限度地减少停机时间来提升整体性能。
10. 与先进技术的兼容性:
传动轴正随着车辆技术的进步而不断发展。它们越来越多地与混合动力系统、电动机和能量回收制动等先进系统集成。专为与这些技术无缝协作而设计的传动轴能够最大限度地提高效率和性能优势,从而提升车辆的整体性能。
总而言之,传动轴通过优化动力输出、促进扭矩传递、提升牵引力和稳定性、增强操控性和机动性、减轻重量、提高机械效率以及兼容性能升级和先进技术,从而提升汽车和卡车的性能。它们在确保高效动力传输、灵敏加速、精准操控以及车辆整体性能提升方面发挥着至关重要的作用。
您能解释一下不同类型的传动轴及其具体应用吗?
传动轴种类繁多,每种都针对特定的应用和要求而设计。传动轴的选择取决于车辆或设备的类型、动力传输需求、空间限制和运行条件等因素。以下是对不同类型传动轴及其具体应用的说明:
1.实心轴:
实心轴,也称为一体式或实心钢传动轴,是一根从发动机或动力源延伸至被驱动部件的连续单轴。它结构简单、坚固耐用,应用广泛。实心轴常见于后轮驱动车辆,用于将动力从变速器传递至后桥。此外,它也用于泵、发电机和输送机等工业机械,这些设备需要直线且刚性的动力传输。
2. 管状轴:
管状传动轴,也称空心轴,是一种具有圆柱形管状结构的传动轴。它们采用空心结构,通常比实心轴更轻。管状传动轴具有重量轻、扭转刚度高、减振性能好等优点。它们广泛应用于各种车辆,包括轿车、卡车和摩托车,以及工业设备和机械。管状传动轴常用于前轮驱动车辆,用于连接变速器和前轮。
3. 等速(CV)轴:
等速万向节(CV轴)专为应对角度运动而设计,旨在保持发动机/变速箱与驱动部件之间的恒定速度。其两端均设有等速万向节,从而实现灵活性并补偿角度变化。等速万向节广泛应用于前轮驱动和全轮驱动车辆,以及越野车辆和某些重型机械。即使车轮转动或悬架运动,等速万向节也能确保动力平稳传输,从而减少振动并提升整体性能。
4. 滑动接头轴:
滑动接头传动轴,也称伸缩轴,由两个或多个可相互滑动的管状部分组成。这种设计允许长度调节,以适应发动机/变速箱与驱动部件之间距离的变化。滑动接头传动轴常用于长轴距车辆或配备可调悬架系统的车辆,例如某些卡车、公共汽车和休闲车。通过提供长度上的灵活性,滑动接头传动轴即使在车辆底盘发生运动或悬架几何结构发生变化时,也能确保动力传输的稳定性。
5. 双万向节轴:
双万向节传动轴,也称为双万向节传动轴,是一种包含两个万向节的传动轴。这种结构有助于减少振动并最大限度地减小万向节的工作角度,从而实现更平稳的动力传输。双万向节传动轴常用于重型应用,例如卡车、越野车和农业机械。它们尤其适用于高扭矩需求和大工作角度的应用,可提供更高的耐用性和性能。
6. 复合轴:
复合材料传动轴由碳纤维或玻璃纤维等复合材料制成,具有重量更轻、强度更高、耐腐蚀等优点。复合材料传动轴越来越多地应用于高性能车辆、跑车和赛车领域,在这些领域,减轻重量和提高功率重量比至关重要。复合材料结构可以精确调节刚度和阻尼特性,从而改善车辆动力学性能和传动系统效率。
7.动力输出轴:
动力输出轴(PTO轴)是农业机械和某些工业设备中使用的专用传动轴。其设计目的是将发动机或动力源的动力传递到各种附件,例如割草机、打捆机或水泵。动力输出轴通常一端采用花键连接动力源,另一端采用万向节以适应角度运动。其特点是能够传递高扭矩,并且与多种驱动装置兼容。
8. 船用轴:
船用传动轴,也称为螺旋桨轴或尾轴,是专为船舶设计的。它们将发动机的动力传递至螺旋桨,从而实现推进。船用传动轴通常较长,且在恶劣环境下运行,会受到水、腐蚀和高扭矩载荷的影响。它们通常由不锈钢或其他耐腐蚀材料制成,旨在承受船舶应用中遇到的严苛条件。
值得注意的是,传动轴的具体应用可能因车辆或设备制造商以及具体的设计和工程要求而异。以上示例重点介绍了每种传动轴的常见应用,但根据特定行业的需求和技术进步,可能还会出现其他变体和特殊设计。


editor by CX 2024-03-12