Cable tray equipment roller is an important part of the cable tray equipment. What are the characteristics of the design and use of the cable tray equipment roller? The design and use of the cable tray equipment roller has the following characteristics.
The principle of the average force of each pass makes the average force of the rolls of the whole line balanced and prolongs the service life of the rolls. The circular arc of the track is the core part of the slide rail. The circular arc after the previous press-in shall be effectively protected by the upper and lower rollers or horizontal wheels during the next rolling and edging.
The arc position of the cable bridge equipment material will definitely change during the stretching process, R will become a triangle, the steel ball will not reach the bottom, and the two-point contact will produce noise. When R becomes larger, the matching rail will shake, the track of the slide rail will be blurred, the force will be uneven, the slide rail will be deformed, and the service life will be shortened. The machining accuracy of the roller is the key. Therefore, a special tool has been specially made under the projection equipment, which will be magnified 20 times for testing.
The carbon content of the cast iron roll is about 2.5-3.5%. According to the main materials can be divided into four categories: ordinary cast iron roll, high nickel chromium infinite chilled composite cast iron roll, high chromium composite cast iron roll and alloy ductile iron roll. The common organization of cast iron rolls can be divided into three categories: matrix, cementite and graphite. The matrix structure is mainly composed of bainite, ferrite, pearlite, bainite and martensite. Graphite in cast iron generally comes in two forms: flakes and spheres.
Обычный чугун рулонах можно разделить на охлажденного чугуна рулонах, среднего и низкого сплава бесконечные охлажденного чугуна рулонах и среднего и низкого сплава ковкого железа рулонах. Охлажденный чугун-это разновидность чугуна, полученная путем переохлаждения расплавленного железа и закалки поверхности формы. Поверхность корпуса ролика охлаждается, образуя белый слой с высокой твердостью и хорошей износостойкостью. Охлажденные чугунные рулоны можно разделить на нековкий чугун, композиционные материалы из ковкого чугуна и шариковые сердечники в соответствии с производственным процессом и основными материалами. Бесконечный охлажденный чугун ролл представляет собой материал между охлажденным чугуном и серым чугуном. Графит в матричной структуре рабочего слоя тела валка, и нет очевидной разделительной линии между рабочим слоем тела валка и сердечником. Резиновый ролик-это такой нижний ролик. Обычные чугунные валки в основном используются для прокатных листовых прокатных станов, трехвалковых прокатных станов, средних листовых прокатных станов, прокатных станов катанки, прутковых прокатных станов и профильных прокатных станов.
Infinite chilled cast iron is a material between chilled cast iron and gray cast iron. The matrix structure of the working layer of the infinite chilled cast iron roll has a uniform distribution of graphite. The graphite content increases with the increase of the depth from the surface to the inside of the roller body, and the hardness decreases accordingly. Therefore, there is no obvious dividing line between the working layer of the roll and the roll core, which is also called high chromium nickel molybdenum alloy element infinite chilled cast iron roll material. There are a large number of carbides in the matrix structure of the working layer of the high-Ni-Cr infinite chilled cast iron roll body, so it has high wear resistance. The presence of graphite in the matrix structure makes it have good heat resistance and heat resistance, and is widely used as a finishing roll for wide, medium and heavy plate mills and strip mills.