A kind of processing method of large austenitic manganese steel plate
A processing method, austenitic technology, is applied in the processing field of large austenitic manganese steel plate parts, which can solve the problems of the service state of the jaw plate parts and the influence of the use of orders, and achieve the effects of protecting equipment, prolonging the service life and saving blades
Active Publication Date: 2019-11-26
广西长城机械股份有限公司
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Problems solved by technology
[0006] The invention provides a processing method of a large austenitic manganese steel plate to solve the technical problem that the existing contact and fastening affect the service state and usage of jaw plate parts
Method used
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Embodiment Construction
[0031] In order to facilitate a better understanding of the present invention, the following examples are used to illustrate, and these examples belong to the protection scope of the present invention, but do not limit the protection scope of the present invention.
[0032] In an embodiment, the processing content of the large austenitic manganese steel sheet includes the following:
[0033] 1. The processing index of the product is as follows:
[0034] 1) The overall dimensions of the workpiece blank are 4100mm in length and 2100mm in width;
[0035] 2) The maximum blank thickness is 370mm;
[0036] 3) The gross weight of the blank is 10.27 tons, and the weight of the processed product is 9.85 tons, accounting for about 5% of the total;
[0037] 4) The machining amount of the blank machining surface is designed to be 8mm;
[0038] 5) The deflection of the blank is 1.2 / 1000 after correction.
[0039] 2. Processing requirements: The processing surface of the jaw plate is ma...
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Abstract
The invention discloses a machining method of a large austenite manganese steel plate. The machining method comprises the following steps that after a workpiece is calibrated, welding fixing steel plates are locally added to four corners of the workpiece, then, the workpiece is firmly welded to an austenite manganese steel body so that the austenite manganese steel plate can be fixedly clamped, and then, a back large plane is machined through an X2025-4 planer milling machine; and 2, an X3535 trimming milling machine is refitted, wherein on one hand, a workbench speed changing box is redesigned and remanufactured, and the output power and torque of the speed changing box are increased, so that the machining requirement that a workbench bears a product as heavy as over 10 tons is met; and on the other hand, a stand column cutter head at one end of the double-end trimming milling machine is dismounted, and the double-end milling machine is changed into a single-end milling machine so that the requirement of the machining length of 4100 mm can be met. According to the machining method, tools are selected to be matched with a lathe, and technological improvement such as technological parameter improvement is conducted, so that machining of a large austenite manganese steel plate product is completed; the requirement is met; efficiency is improved; and energy consumption is lowered.
Description
【Technical field】 [0001] The invention belongs to the technical field of processing steel plates, and in particular relates to a processing method for large austenitic manganese steel plates. 【Background technique】 [0002] The typical product of extra large manganese steel plate parts is the main working part of large jaw crusher: jaw plate. The jaw plate is mainly cast from austenitic manganese steel. Because of its comprehensive properties such as strength, hardness, toughness, work hardening and strong wear resistance, it has achieved an irreplaceable position in crushing equipment in mining, construction cement and other industries. [0003] The feature that restricts the wide application of austenitic manganese steel parts is that it is difficult to cut because of its work hardening performance, especially for large castings, which requires more installation requirements and processing difficulties. [0004] The jaw crusher has the advantages of simple structure, larg...
Claims
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IPC IPC(8): B23C3/00
CPCB23C3/00
Inventor 赵四勇廖钊康建田辉周正
Owner 广西长城机械股份有限公司