GB 25493-2010 English PDFUS$349.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 25493-2010: Rapid prototyping machines by laser as processing energy -- Technical requirements for safeguarding Status: Valid
Basic dataStandard ID: GB 25493-2010 (GB25493-2010)Description (Translated English): Rapid prototyping machines by laser as processing energy -- Technical requirements for safeguarding Sector / Industry: National Standard Classification of Chinese Standard: J59 Classification of International Standard: 25.080.99 Word Count Estimation: 15,156 Date of Issue: 2010-12-01 Date of Implementation: 2011-10-01 Quoted Standard: GB 2893; GB 2894; GB 5226.1-2008; GB 7247.1; GB 10320; GB/T 14896.7-2004; GB/T 15706.1-2007; GB/T 15706.2-2007; GB/T 16769-2008; GB 18490; GB/T 18569.1-2001; GB/T 18569.2-2001 Regulation (derived from): Announcement of Newly Approved National Standards No. 9, 2010 (No. 164 overall) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This Chinese standard specifies the energy of a laser machining rapid prototyping machine safety technical requirements. This standard applies to laser energy for the processing of rapid prototyping machines. GB 25493-2010: Rapid prototyping machines by laser as processing energy -- Technical requirements for safeguarding---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Rapid prototyping machines by laser as processing energy.Technical requirements for safeguarding ICS 25.080.99 J59 National Standards of People's Republic of China Laser energy for the processing of rapid prototyping machine Security Technical Requirements Issued on. 2010-12-01 2011-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsPreface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Dangerous List 3 5 Safety requirements and measures 3 6 Use the information (see inspection 7.12) 5 Test 77 security requirements Dangerous List Appendix A (informative) related to this standard 10ForewordThe standard Chapter 5 - Chapter 7 are mandatory, the rest are recommended. Appendix A of this standard is an informative annex. The standard proposed by China Machinery Industry Federation. The standard machine tools by the National Standardization Technical Committee (SAC/TC161) centralized. This standard was drafted. Xi'an Jiaotong University, Rapid Manufacturing National Engineering Research Center, Suzhou Institute of Electrical Machines. The main drafters of this standard. Zhao Wanhua, Songsong Hui, Yu Zhi three, Wang Ying, Fu Chusen, Bingheng. Laser energy for the processing of rapid prototyping machine Security Technical Requirements1 ScopeThis standard specifies the technical requirements for safety in laser machining energy of rapid prototyping machines. This standard applies to laser energy for the processing of rapid prototyping machine (hereinafter referred to as the "Machine").2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 2893 Safety colors (GB 2893-2008, ISO 3864-1.2002, MOD) GB 2894 Safety Signs and use guidelines GB 5226.1-2008 Safety of machinery - Electrical machinery and electrical equipment - Part 1. General requirements (IEC 60204-1.2005, IDT) GB 7247.1 Safety of laser products - Part 1. Equipment Classification, Requirements and User's Guide (GB 7247.1-2001, IEC 60825-1.1993, IDT) GB 10320 laser systems and facilities electrical safety (GB 10320-1995, eqvIEC 820. 1986) GB/T 14896.7-2004 machine tools - Terminology - Part 7. Rapid Prototyping Machine GB/T 15706.1-2007 Safety of machinery - Basic concepts, general principles for design - Part 1. Basic terminology, methodology (ISO 12100-1. 2003, IDT) GB/T 15706.2-2007 Safety of machinery - Basic concepts, general principles for design - Part 2. Technical principles (ISO 12100-2. 2003, IDT) GB/T 16769-2008 Metal-cutting machine noise level measurements GB 18490 Laser processing machines - Safety requirements (GB 18490-2001, eqvISO 11553.1996) GB/T 18569.1-2001 Safety of machinery decreased from hazardous substances emitted by machinery health risk - Part 1. for Machinery manufacturers principles and norms (eqvISO 14123-1.1998) GB/T 18569.2-2001 Safety of machinery decreased from hazardous substances emitted by machinery health risk - Part 2. Generate Method validation procedures (eqvISO 14123-2.1998)3 Terms and DefinitionsGB/T 14896.7-2004 and established the following terms and definitions apply to this standard. 3.1 Dangerous hazard Possible damage or harm to the health of origin. Note. The "danger" of the term is generally used in combination with other words and is expected to define its origin or the nature of their injuries on the body of the health hazards, such as electric shock, radiation risk Dangerous, dangerous cold, the risk of contamination, a crushing hazard, cutting hazard, toxic hazards, etc. (the dangers generated by the machine, see Chapter 4). 3.2 Risk risk In hazardous situation that may damage or harm to the health of the probability and extent of synthesis. 3.3 Danger zone dangerzone People facing the risk of injury or harm to health of a region inside the machine, especially with laser systems, laser optical beam transmission system Conventional forming region and relevant regional and (or) around the area. Note. The risk of this definition envisaged in either the presence of dangerous sports (dangerous moving parts of the machine regularly scheduled during the trial period, the arc welding Etc.), it may also occur unexpectedly (unexpected start). 3.4 Processing Zone machiningarea Shaped region with the laser beam shaping interior material or workpiece interactions. 3.5 Security safeguarding The use of specific technical means called a security guard (safety devices, guards), and can not prevent people from being avoided by the appropriate design Or sufficiently limited variety of dangerous security measures. 3.6 Operator operator The machine tool installation, use, adjustment, maintenance, repair or transfer and transportation personnel. 3.7 Guard guarddevice Objects obstacles by way of habeas corpus means devoted. Structural protection device may be a shell, screen, doors, hood, around the bezel Letters, enclosed protective devices. Note 1. The role of protective devices can be. --- Alone, only when it is closed it is valid; --- And with or without guard locking interlock joint action, in this case, the guard is guaranteed regardless of the protective effect in any position. Note 2. "Off" for fixed guards is "to keep in position." 3.8 Safety devices safetydevice Or with a guard combined with (rather than guard) means a single device to eliminate or reduce risks. 3.9 Laser laser Mainly through the process of controlled stimulated emission generated or amplified by means 180nm ~ 1mm wavelength electromagnetic radiation in. Also known as photons Amplifier. 3.10 Laser radiation laserradiation Wavelength laser products produced by controlled stimulated emission of 180nm ~ 1mm of all electromagnetic radiation. 3.11 Laser rapid prototyping machine laserrapidprototypingmachines Laser-machining energy, layer by layer using the discrete/accumulation principle of rapid prototyping machine processed. Which contains one or more Lasers, can provide sufficient energy or power, so that at least part of the melt molding material or a sintered workpiece, vaporized evaporation, phase transition Cured. 3.12 Molding material formingmaterials Used for the processing of laser energy rapid accumulation of processed material molded parts.4 Dangerous ListRisk Factors machine see Appendix A.5 Safety requirements and measures5.1 General Requirements (check see 7.1) 5.1.1 predetermined function determined in the design of the machine, the intended use, life expectancy, use of laser systems and recommended suitable shaping material, Should consider security measures. Machine according to prescribed conditions of manufacturing, installation, commissioning, maintenance, repair, storage, transport and use, does not deal with personnel And the environment from harm and danger. 5.1.2 shall be designed out or reduce the risk, alone or in combination include the following measures. --- Choose the appropriate design of the structure and reduce the risk to avoid; --- Reduce operator needs to enter the danger zone, to control its risk. 5.1.3 By design danger can not be avoided or sufficiently limited, the security guards should be used to protect personnel. 5.1.4 For some hazard and risk can not be due to lack of protection guards and remain shall inform the operator through effective manner. should In the instruction manual, it should be a warning sign or signs in dangerous parts when necessary. 5.2 Mechanical hazards and protective (check see 7.2) 5.2.1 The operator may touch machine parts shall not have sharp edges, sharp corners, sharp edges and other defects in order to avoid the risk of cuts and stab wounds. 5.2.2 Under predetermined operating conditions, machine tools and parts should not accidentally capsized. Laser systems, beam delivery components should be protective measures And firmly positioned against impact and vibration. 5.2.3 reciprocating motion machine parts should take reliable limit. Each movement of the shaft should be provided with a reliable dual electrical and mechanical stop means Set against the danger caused by the fall. 5.2.4 the machining area should be interlocked shields, protective beam path should be enclosed. For workspace use the machine closed structure, The forming room should be interlocked door. 5.2.5 When the guard interlock is opened, the machine should not start or stop working, and shall ensure that, before the guard is closed not start. Such as when forming chamber door is open, the machine can not be processed in order to prevent the danger of moving parts collide at high speeds. 5.2.6 Machine laser shaping device should be safe, reliable so that it does not fall off or be thrown off during exercise. 5.2.7 In a large part of the risk should consider the use of multiple different security guards, and a reliable fail-safe mechanism. Such as high temperature protection Protective measures, the termination of the beam attenuator, baffles, automatic shutdown mechanism and other mechanical and electrical multiple protection devices. 5.3 safety devices (see check 7.3) 5.3.1 The safety device is a mechanism for the movement of the risks involved and set up. It should be. --- Meet the required mechanical strength and stiffness, reliable performance; --- Does not add any additional hazard (eg caused by pinching, shearing, etc.); --- Can be firmly and securely fixed. 5.3.2 detachable guards should be easy assembly and disassembly, its quality can not be more than 6kg. Open impetus guards shall not exceed 40N. Security (check see 7.4) 5.4 control systems and devices 5.4.1 machine control device and a control circuit shall conform to the requirements of GB 5226.1, the laser system and the rest of the machine, you can use Separate control device to ensure its reliable function, and ensure that all functions do not interfere with each other. Control system should be able to withstand the expected workload Dutch and foreign influence. Control information carrier interruption and damage should not result in uncontrolled movements, the laser system delay shutdown dangerous situation appear. 5.4.2 Setting control systems should take into account the additional risk of misuse may result. Prone to misuse control devices should be designed To consider fault tolerance. 5.4.3 The machine should be selected for each switching operation state control function set, each of which correspond to one set only control function or work Status (such as automatic control or adjustment, inspection), can also be used in other ways (such as code control) work state selection. Stop the machine should be able to switch So that the moving parts in the machine is stopped while isolating the laser beam, or no longer produce a laser beam; laser stop switch should enable the laser beam does not Regenerate. 5.4.4 Each "start" control components shall be provided close to a "stop" control components. Each operating position of the machine shall be provided Emergency stop devices. Stop the machine should be able to achieve. --- Laser beam does not generate the laser shutter and automatically placed in the off position; --- So that the machine shutdown (power control unit); --- Laser cutting power and release all the energy stored. 5.4.5 often observed readings meter installation height is generally 0.7m ~ 1.7m. Infrequently observed readings meter installation height allowed Xu 0.3m ~ 2.5m. Laser beam position monitoring system should be higher than the operator's eye level, and should take appropriate safety Measures. 5.4.6 protective device is opened or moved, or interlock device failure, the machine does not automatically run the job. The machine tool design requirements It is opened in one or more guard (when the normal processing is closed), and under machine control unit power supply situation, to perform a temporary These procedures, the work provided should enable those guards invalid. Selected works. a) by way of a lockable selector; b) can automatically isolate the laser beam; c) to prevent the machine runs automatically. 5.4.7 Application of the selected operating mode signal clearly expressed. After the work mode is selected, it should enable the beam interval in the maintenance From invalid (ie "open shutter"). 5.5 Electrical Hazards and Protection (see 7.5,7.13 checking) 5.5.1 Electrical box (cabinet) protection rating shall comply with the provisions of GB 5226.1. 5.5.2 protective earthing circuit continuity machine, insulation resistance testing and pressure tests shall comply with the provisions of GB 5226.1. 5.5.3 Machine molding indoor electrical equipment (including components) should have a resistance to heat, corrosion and explosion proof electrical products requirements (see 18.4 GB 5226.1-2008 provisions). 5.5.4 Additional safety requirements for machine tools, electrical equipment shall comply with the provisions of GB 5226.1. 5.5.5 using high pressure (higher than 1kV) laser, the laser should be able to cut off the power at the time, the energy stored in the capacitor quick release. anode Working voltage is greater than 5kV electronic devices should be carried out X-ray shielding. 5.6 Temperature control security requirements (see 7.6,7.14 inspection) 5.6.1 laser processing system should be reliable temperature control device can automatically adjust the temperature, the heating system should be insulated external anti Protection measures (such as the installation of insulating material with protective cover) to prevent the danger of scalding. 5.6.2 forming chamber or hopper tank heating machine, take the following precautions. --- Use reliable temperature control means for controlling the heater temperature to prevent overheating; --- Forming chamber or hopper tank temperature exceeds the set temperature alarm should be, and can be shut down or stop heating process requirements. 5.6.3 forming chamber doors should be interlocked with the laser processing heating system, in which heating and processing operation, the door can not be opened. 5.6.4 should prompt the desired heating temperature and different molding material forming chamber, a hopper tank temperature range in the operating manual. 5.7 ventilation, fire safety requirements (see 7.7 inspection) 5.7.1 forming room should be equipped with ventilation devices, cooling flow should meet the requirements, according to process requirements and the forming chamber, a hopper or tank heater linkage Interlock. 5.7.2 When using laser facilitate interaction with the material forming the auxiliary gas (such as oxygen), ranked in the workplace should be made use specification Gas, ventilation and fire suppression equipment requirements. 5.8 Hazardous Substances protection requirements (see 7.8,7.15 inspection) 5.8.1 shall GB/T 18569.1-2001 provisions of the principles, taking into account the emission of smoke and molding material scattered in the air particulate matter Quality on the harmful health risks and take appropriate method to be recovery, discharge standards and proposed limits for hazardous substances in the User's Guide These limit values and the molding material produced in the process of smoke and particulate matter. 5.8.2 Determination of the concentration of harmful substances according to GB/T 18569.2-2001 provisions. 5.9 laser radiation safety (inspection see 7.9) 5.9.1 should be GB 7247.1 of the security protection of the laser radiation. 5.9.2 When the laser radiation is likely to exceed Level 1 AEL (up to the limit of radiation), there should be one or more guards to prevent people entering the processing Area. According to the direction of the beam relative to the workpiece, the type of laser machining, forming process visibility nature of the material and processing zones to select use Effective protection of local or peripheral laser radiation protection measures. 5.9.3 Taking into account the period of maintenance personnel sometimes inevitably approaching Level 1 AEL (up to the limit of radiation) to laser radiation above shall The following four cases (according to the order listed to consider) laser processing machine design and provide appropriate security measures. a) outside the danger zone for maintenance; b) In the danger zone for maintenance, use and control during the production in the same way close (such as interlocked guard); c) In the danger zone and close to the level of not more than 1 AEL (up to the limit of radiation) laser radiation repair (such as during the normal production Guard closed open); d) In the danger zone for maintenance, such as when opening the guard closed during normal production level accessible than 1 AEL (up to Radiative limit) laser radiation. The manufacturer should indicate the level of laser radiation as closely as possible, and to make recommendations on each (if appropriate) of the security program. 5.9.4 In the training, planning and program verification period should be avoided from approaching 3A level AEL (up to the limit of radiation) than laser radiation. Such as Can not satisfy this condition, it should meet the protection requirements during maintenance. 5.9.5 Isolation of the laser beam to be cut off by the light beam and (or) to deviate the laser beam to achieve in order to prevent the laser beam entering the beam delivery system. Isolation should be used to achieve a beam can be removed immediately or fail-safe laser laser beam laser located within the stopper (light brake). Beam stopper is in the closed position when there is a pointer to give instructions (ie, preventing the light beam emitted). Should provide an easy way to make block the light path of the beam stopper locking, allowing the use for this key switch. In the following cases the machine manufacturer can provide additional beam stopper. a) there along the optical path (beam delivery system) for maintenance or cleaning zone area; b) a plurality of laser light path, people need to go to one of the light path beam to be transmitted along optical path when other. 5.9.6 Taking into account must remain in (except production) danger zone, the machine should provide emission control systems and laser beam It means, and shall be located in a hazardous area personnel control. Such devices shall meet the following requirements. --- The handheld device should have a control switch, it can be prevented from approaching disconnect Class 3A AEL (up to the limit of radiation) or more Laser radiation; --- When using this control device, the machine control system and the laser beam emitted shall be exclusively controlled by the device; --- If through the door to enter the danger zone, these doors should be closed before they can start using the device emits a laser. 5.10 noise (see inspection 7.10) 5.10.1 machine tool noise level should not exceed 75dB (A). Noise level measurement tool should be consistent with GB/T 16769 Provisio......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 25493-2010_English be delivered?Answer: Upon your order, we will start to translate GB 25493-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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