JB/T 8783.1-1998 This standard is a revision of ZB J62 009-87 "Double-disc Friction Brick Press Accuracy". This standard specifies the general requirements, tolerances and inspection methods for friction brick press accuracy inspection. This standard applies to friction brick presses with two types of internal brick discharging and external brick discharging for refractory brick making, and also applies to composite brick presses with hydraulic preloading. JB/T 8783.1-1998 Friction Brick Press Accuracy JB/T8783.1-1998 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 8783.1—1998
Precision of Friction Brick Press
1998-07-17 Release
National Bureau of Machinery Industry
1998-12-01 Implementation
JB/T8783.1-1998
This standard is a general requirement for the opening and adjustment of ZBJG2009—87 double-disc rate support brick press, and precision inspection!
This standard is a standard for measuring the length of the differential connection. Precision> is a waiting standard. In terms of technical content, this standard has the following advantages over the original standard. From the date of entry into force, this standard will be combined with ZBT62009—87. This standard is proposed and managed by the National Technical Committee for the Difficulty of Pressing Machines. The draft standard is updated by Liaoyang Yan Pressing Machine Tool Co., Ltd. The main drafter of this standard is the author. This standard was first issued in April 1987. 1 Scope
Machinery Industry Standard of the People's Republic of China
Friction Brick Press, Accuracy
This standard specifies the general requirements, tolerances and inspection methods for the accuracy test of friction brick crushers, JB/T8783.1-1998
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This standard is applicable to electric support brick presses with internal and external pressures for testing refractory bricks, and also to combined brick presses with hydraulic ring pressure (hereinafter referred to as brick presses) 2 Reference Standards
The provisions contained in the following standards become the provisions of this standard through their use in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GBT1184—1996 Tolerance of shape and position Notes Tolerance value GB10U23—89
3-Year requirements
Forging machine basic precision inspection and test
3. Before precision inspection, the installation level of the brick press should be adjusted, and a level gauge should be placed in the middle of the warehouse workbench. The horizontal level gauge should not exceed 0.20/1000mmWww.bzxZ.net
3.2 The working table of the brick press is the necessary surface for the box precision inspection. When inspecting G1G2 and G3 items of the brick press, the mold rail should be removed for inspection.
3.3 During precision inspection, parts and objects that affect the required precision of the machine should not be adjusted. 3.4 When inspecting G1 and G2, if the reverse length L≥1000mm, it is not inspected within the range of L/20 from the edge. If the reverse length is 21000mm, it is not inspected within the range of 50mm from the edge. 3.: The length measured before G2 refers to the length of the long side of the lower plane of the slider. 3.6 The flatness of the workbench pad or the upper and lower planes, the half-line tolerance values ​​of the two planes should be in accordance with the flatness and parallelism level 8 in GB/T1184-19 respectively.
3. The precision inspection order does not show the actual inspection order. Approved by the State Machinery Industry Bureau on July 17, 1999. Implemented on December 1, 1998
JB/T STa3.1
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