JB/T 13237-2017 English PDF (JBT13237-2017)

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JB/T 13237-2017: High pressure metal die casting units. Technical requirements
JB/T 13237-2017
JB
MECHANICAL INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 25.120.30
J 61
Filing No.: 58496-2017
High pressure metal die casting units - Technical
requirements
ISSUED ON: APRIL 12, 2017
IMPLEMENTED ON: JANUARY 01, 2018
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Technical requirements ... 7 
4.1 General requirements... 7 
4.2 Die-casting machine ... 8 
4.3 Extractor ... 8 
4.4 Sprayer ... 8 
4.5 Ladler ... 9 
4.6 Conveyor ... 9 
4.7 Die temperature control device ... 9 
4.8 Barrier ... 9 
4.9 Dry running requirements ... 10 
4.10 Loaded operation requirements ... 10 
5 Inspection method ... 11 
6 Inspection rules ... 11 
6.1 Exit-factory inspection ... 11 
6.2 Type test ... 12 
7 Marking, packaging, transportation, storage ... 12 
High pressure metal die casting units - Technical
requirements
1 Scope
This standard specifies the terms and definitions, technical requirements,
inspection methods, inspection rules, marking, packaging, transportation,
storage of die-casting units.
This standard applies to cold-chamber die-casting units and hot-chamber die-
casting units (hereinafter referred to as die-casting units).
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 3766 Hydraulic fluid power - General rules and safety requirements for
systems and their components
GB 5226.1 Electrical safety of machinery - Electrical equipment of machines
- Part 1: General requirements
GB/T 7932 Pneumatic fluid power - General rules relating to systems
GB/T 7935 Hydraulic fluid power - General requirements for hydraulic
components
GB/T 9969 General principles for preparation of instructions for use of
industrial products
GB/T 13306 Plates
GB 20906 Safety requirements for high pressure metal diecasting units
GB/T 21269 Cold chamber die casting machines
GB/T 25371 Foundry machinery - Measurement method of sound pressure
level
GB/T 25711-2010 Foundry machinery - General technical requirements
4 Technical requirements
4.1 General requirements
4.1.1 The hydraulic system and hydraulic components, of the die-casting unit,
shall meet the requirements of GB/T 3766 and GB/T 7935.
4.1.2 The electrical system of the die-casting unit shall meet the requirements
of GB 5226.1.
4.1.3 The pneumatic system of the die-casting unit shall meet the requirements
of GB/T 7932.
4.1.4 Each component of the die-casting unit shall have nameplates and signs,
which indicate the operation, lubrication, safety of hydraulic and pneumatic
systems. The content and markings of nameplates and signs shall be correct.
The signs shall meet the requirements of GB/T 13306. It is allowed to inlay and
cast clear factory names and trademarks, on the die-casting machine.
4.1.5 The components of the die-casting unit shall have reliable lubrication
devices. The die-casting machine shall adopt a centralized lubrication system;
it shall have detection functions and sound and light alarms.
4.1.6 The hydraulic system of the die-casting unit shall be free of leakage. The
temperature of the working fluid shall not exceed 55 °C, during continuous
operation. An automatic alarm shall be issued, when the above-mentioned
temperature is exceeded.
4.1.7 The working fluid medium of the die-casting unit shall meet the
requirements of the technical documents. The internal cleanliness limit of the
hydraulic cylinder shall not exceed 0.02% of the lower limit of the oil weight of
the lubricating oil standard.
4.1.8 The adjustment valve stems of the control mechanisms of the die-casting
unit shall be flexible, reliable, positioned correctly, after assembly.
4.1.9 The safety of the die-casting unit shall meet the requirements of GB 20906.
4.1.10 There shall be a safety interlock function, between the die-casting
machine and the extractor, sprayer, ladler and other devices, to prevent
mechanical damage, which is caused by mal-operation.
4.1.11 The technical documents, which are supplied together with the die-
casting unit, shall at least include instructions for use, certificate of conformity,
packing list. The instructions for use shall meet the requirements of GB/T 9969.
4.1.12 The robot shall set the three-dimensional space function. When it
automatically sends and receives a set of digital signals or multiple sets of
digital signals, in this space, the associated robot or equipment shall prevent
interference and collision.
4.2 Die-casting machine
4.2.1 The die-casting unit shall have manual, semi-automatic, automatic
working modes.
4.2.2 The cold-chamber die casting machine shall meet the requirements of
GB/T 21269.
4.2.3 The hot-chamber die casting machine shall meet the requirements of JB/T
6309.3.
4.3 Extractor
4.3.1 The action of the extractor shall be sensitive and reliable.
4.3.2 The clamping diameter of the jaws shall correspond to the diameter of the
pressure chamber of the die-casting machine.
4.3.3 The working length of the arm shall be greater than the distance, FROM
the rear safety door TO the center of the machine.
4.3.4 The running track shall reach the working range of each job position.
4.3.5 The extractor shall have a soft floating function, to cooperate with the
ejection action of the die-casting machine, thereby protecting the robot body
and die-casting products from damage.
4.4 Sprayer
4.4.1 The sprayer shall meet the requirements of JB/T 12284.2.
4.4.2 The sprayer shall have an anti-drop device, to prevent the nozzle from
falling, when the air pressure source stops.
4.4.3 The rising and falling speed of the sprayer shall be stable; it shall have a
rapid descent deceleration function.
4.4.4 The spray nozzle's atomization of the sprayer shall be uniform; there shall
be no dripping after spraying.
- Carried safety latch (the latch which is carried by personnel when entering
the robot work area; if there is no such latch, the safety door cannot be fully
automatic);
- Teaching safety latch (plug in during manual debugging).
4.8.2 The barriers shall have a safety interlock function, with other devices of
the die-casting unit.
4.9 Dry running requirements
4.9.1 The dry running time shall not be less than 8 hours.
4.9.2 During operation, abnormal conditions that occur are allowed to be
eliminated; the elimination time shall not exceed 0.5 h each time; the cumulative
time shall not exceed 2 h.
4.9.3 The actions of pneumatic, hydraulic, electrical systems shall be
coordinated and reliable.
4.9.4 The actions of each job position, during the operation of each device, shall
be accurate, stable, reliable.
4.9.5 Each movement mechanism shall be stable; the fasteners shall be anti-
loosing and reliable.
4.9.6 After 4 hours of dry running, the temperature rise of the rolling bearing
shall not exceed 35 °C; the maximum temperature shall not exceed 70 °C.
4.9.7 Pneumatic and hydraulic systems shall not leak AND have good sealing.
4.9.8 The noise sound pressure level of the die-casting unit, under dry running