|
US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB 25491-2010: Molding machine -- Safety requirements
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB 25491-2010 | English | 229 |
Add to Cart
|
3 days [Need to translate]
|
Molding machine -- Safety requirements
| Valid |
GB 25491-2010
|
PDF similar to GB 25491-2010
Basic data | Standard ID | GB 25491-2010 (GB25491-2010) | | Description (Translated English) | Molding machine -- Safety requirements | | Sector / Industry | National Standard | | Classification of Chinese Standard | J61 | | Classification of International Standard | 25.120.30 | | Word Count Estimation | 10,149 | | Date of Issue | 2010-12-01 | | Date of Implementation | 2011-10-01 | | Quoted Standard | GB 5083; GB 5226.1-2008; GB/T 9969; GB 12265.3; GB/T 14776; GB/T 15706.1; GB/T 15706.2-2007; GB 16754; GB/T 16251; GB/T 16855.1; GB/T 16856.1; GB 20905-2007; GB 23821 | | 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 molding machine designers, manufacturers and suppliers, and users should follow the basic safety requirements. This standard applies to various types of foundry molding machine with a shape (hereinafter referred to as molding machine), but also for machine molding line in the shop. | GB 25491-2010: Molding machine -- Safety requirements---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.
Molding machine.Safety requirements
ICS 25.120.30
J61
National Standards of People's Republic of China
Molding machines - Safety 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
Foreword
All the technical contents of this standard is mandatory.
The standard proposed by China Machinery Industry Federation.
This standard by the National Foundry Machinery Standardization Technical Committee (SAC/TC186) centralized.
This standard was drafted. The Zimmer Jinan Forging Machinery Co., Ltd., Jinan Foundry and Metalforming Machinery Research Institute, caused by the constant (Tianjin) Industrial Co.,
the company.
The main drafters of this standard. Lu Jun, ZHU Xiao steel, any Ebel.
Molding machines - Safety requirements
1 Scope
This standard specifies the basic safety requirements of the molding machine designers, manufacturers and suppliers and users should follow.
This standard applies to foundry shapes with various types of molding machine (hereinafter referred to as molding machine), also applies to the molding line machine shop.
2 Normative references
The 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 5083 production equipment with safety and health General
GB 5226.1-2008 Safety of machinery - Electrical machinery and electrical equipment - Part 1. General requirements (IEC 60204-1.2005,
IDT)
GB/T 9969 General Instructions industrial products
GB 12265.3 Safety of machinery to avoid crushing of parts of the human body minimum spacing (GB 12265.3-1997, eqvEN349.
1993)
GB/T 14776 Ergonomic design principles job size and value
GB/T 15706.1 Safety of machinery - Basic concepts, general principles for design - Part 1. Basic terminology, methodology (GB/T 15706.1-
2007, 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)
Ergonomic principles GB/T 16251 design of work systems (GB/T 16251-2008, ISO 6385.2004, IDT)
GB 16754 Safety of machinery - Emergency stop design principles (GB 16754-2008, ISO 13850.2006, IDT)
GB/T 16855.1 machinery safety control system relating to safety components - Part 1. General principles for design (GB/T 16855.1-
2008, ISO 13849-1.2006, IDT)
GB/T 16856.1 Safety of machinery - Risk assessment - Part 1. Principles (GB/T 16856.1-2008, ISO 14121-1.
2007, IDT)
Foundry machinery - Safety requirements GB 20905-2007
GB 23821 Safety of machinery - Safety distances to prevent danger zones being reached on the lower limbs (GB 23821-2009, ISO 13857.2008,
IDT)
3 important risk projects
3.1 General
The following items are important risk based on GB/T 16856.1 within the scope of this standard molding machine risk assessment.
3.2 Mechanical hazards
3.2.1 molding machine operation, which may cause moving parts to persons pinching, shearing, collision, winding and dangerous.
3.2.2 molding machine parts due to the form factor, its sharp edges, corners may be cut or stabbed on the person causing danger.
3.2.3 molding machine parts during use due to loose, loose, broken or dropped, broken, thrown dangerous may cause.
3.2.4 molding machine control its own motion or hazardous components may cause malfunction of unexpected movement.
3.2.5 In the high-altitude operations (repair or maintenance, etc.) may result in the risk of falling.
3.2.6 molding machine four weeks may cause slipping, tripping hazard.
3.2.7 Maintenance personnel to operate or operating narrow space collision may suffer inconvenience, pinch, and dangerous.
3.3 risk may be caused by the high pressure fluid
3.3.1 Maximum pressure hydraulic and pneumatic systems outweigh the risks rated safe working pressure of components caused by the system.
Explosion hazards 3.3.2 Pneumatic compaction molding machine pressure vessel (gas storage bag) and a cylinder, etc. may occur.
3.3.3 hydraulic circuit with accumulator, the accumulator relief at not fully dismantle dangerous situation caused by maintenance or.
3.3.4 hydraulic or pneumatic systems may cause leakage and contamination of the ground caused by the ejection dangerous slipping and dangerous.
3.3.5 pressure loss or pressure drop may cause serious body malfunction dangerous.
3.3.6 system piping can cause elements (including seal) foreign object damage (eg scale, burrs, moisture, etc.) may cause failure mechanism
And personal injury.
3.3.7 Pneumatic compaction molding machine operation, since the seal failure, pneumatic air tight than not discharge or other reasons (such as a sudden stop
Electricity, snuff, etc.) may cause dangerous blasting.
3.3.8 Pneumatic compaction molding machine operation, or air-launched air impact load may cause danger.
3.4 Electrical Hazards
3.4.1 direct contact with exposed energized parts or insulation failure of live wires or components may cause electric shock, fire, burns, panic
Falls and other hazards.
3.4.2 dangerous failure of the control electronics caused by incorrect operation.
3.5 Noise and vibration Dangerous
3.5.1 molding machine causing excessive noise by the following reasons, causing the operator to long-term hearing loss, tinnitus, fatigue, mental depression and
Audible signal interference danger.
--- Shock compaction mechanism, vibration son, vibration, sand and other mechanical shocks;
--- Pneumatic system and the impact of air, shooting sand exhaust;
--- Motor and pump operation imbalances;
--- Improper piping installation, fixed is not strong;
--- Other mechanical shocks.
3.5.2 operator working positions and often walk around the area due to mechanical vibration caused by the operator after causing a long-term illness.
3.6 hazardous materials and substances produced
Dust or other harmful substances 3.6.1 production process may cause irritation and inhalation hazard to human organs.
3.6.2 molding machine mold lubricant may cause a fire danger. Smoke and fog produced by mold lubricant may be made in human organs
To stimulate and inhalation hazards.
3.6.3 molding machine hydraulic medium may cause a fire danger.
3.7 Other hazards
3.7.1 By ignoring the risk of ergonomic principles of ergonomics can cause, such as the operating direction is easy to produce errors, inappropriate lighting, too tight
Zhang and fatigue.
3.7.2 loading, during transport, much weight, poor stability, spare parts, not fixed, and strong enough spreader tipping accidents and other causes, shift
Moving or falling hazard.
3.7.3 molding machine and control systems against electromagnetic interference resulting in poor performance machines not working properly can be dangerous.
3.7.4 two or more than two dangerous operation molding machine operator, since uncoordinated or other accidents caused by the operation.
4 Safety requirements and/or measures
4.1 Basic requirements
4.1.1 molding machine safety design should be consistent with GB/T 15706.1, GB/T 15706.2 and GB 5083 regulations.
4.1.2 Security molding machine shall comply with the provisions of this standard, it should also comply with the relevant provisions of GB 20905.
4.1.3 molding machine should be maximized through design eliminates the hazard or reduce the risk, it has intrinsic safety. If you can not or do not realize
When fully realized, it should be adopted to provide security guards for personnel protection. Not allowed to ignore these principles, simply rely on the use of the letter
Warning message to the user or prompts.
4.1.4 Using the information that can not only be used to eliminate or sufficiently reduce by design, but security guards its invalid or incomplete
Effective residual risks, users were asked to notice and warning. The use of information should not be used to make up the design and manufacturing defects.
4.1.5 should not be left to the user to address (for transformation of the machine) can be eliminated through the dangerous design, nor should the safety protective equipment
Manufacture and installation of opposing bear left to the user.
4.1.6 molding machine should be designed to fully reflect ergonomic principles, and should be consistent with GB/T 16251, GB/T 14776 and other relevant standard
Registration requirements.
4.2 molding machine table - Safety requirements danger zone plate
The main danger zone 4.2.1 molding machine is the table - plate area, various measures should be taken to eliminate the risks.
4.2.2 molding machine should be designed to ensure that plate, type tooling and other frame securely mounted on the table and related components, not because the meaning
Loose outside hazardous.
4.2.3 compacting mechanism molding machine from the compacting station and between the operating position should be safe distance or using both hands to control compaction
sand mold.
4.2.4 compacted sand compacting mechanism using both hands to control, the hand control should be consistent with GB in the type Ⅲ 5226.1-2008 9.2.6.2
Provisions.
4.2.5 distance and the arrangement position between the two controllers should be prevented by a hand or a hand and forearm, abdomen, knees and other parts of the operation
possibility. Time synchronization of tolerance should not exceed 1s.
4.2.6 should any part of the injection can be prevented in the body of the operator between the indenter and extends into the flask.
4.2.7 Pneumatic compaction molding machine, sealing means to prevent the blasting should be sealed and reliable.
4.2.8 automatic molding line of the table - plate area should be set up protective devices (protective doors, hood or baffle) to all vulnerable to dangerous
Personnel to provide security.
4.2.9 selection of all types of protective equipment, design and installation requirements shall comply with GB/T 15706.2 and other relevant standards.
4.2.10 installed guards should not create obstacles to the operation and gaze operator.
4.2.11 Interlocking guards should be maintained with the control system, when the guards did not enter the correct position, the molding machine can not be started or pneumatic compaction
Sand filling operation.
4.2.12 and guard-related controllers and interlocks should prevent accidental operation.
Dangerous or hazardous areas near the plate auxiliary equipment - 4.2.13 rear guard position, should be able to prevent any part of the body into the bench
Site.
4.2.14 After the guard position, should be able to ensure that once the sand is ejected after the air punch or shoot sand head and the contact surface between the flask to persons not
Cause harm.
4.2.15 In Pneumatic compaction process, the guard should have been continuous in a fully closed state. Only after the end of the pneumatic tight, anti
Retaining means can be opened.
4.2.16 molding machine should be equipped as needed photoelectric safety devices and other safety devices to ensure the safety of the need for manual operation.
4.3 pairs of the electrical system requirements
4.3.1 All electrical equipment shall comply with the relevant provisions of GB 5226.1 and GB 16754, to prevent electrical hazards.
4.3.2 Since the molding machine working poor environment, it is possible to work under harsh conditions (such as dust, hot sand, hot metal, etc.) of the control element
Situation suffered damage to deal with electrical cabinets and components to provide protection facilities.
4.3.3 cable layout should take full account of the molding machine working environment, as necessary, to provide protective equipment and should be added to the owner's manual
Explained.
4.4 pairs of control system requirements
4.4.1 molding machine control system components related to the safety and security requirements should be designed to comply with the relevant provisions of GB/T 16855.1 of.
4.4.2 Pneumatic compaction molding machine should be designed to ensure that does not happen or air-launched air impact load. It should be reliable interlock between each operation.
4.5 pairs of hydraulic and pneumatic systems requirements
4.5.1 General requirements
4.5.1.1 The system shall be provided to ensure that the work pressure is kept within the allowable range of the device, the sealing system should be reliable. In addition, it
Measures should be taken to ensure that the system is not due to the internal and external leakage or severe pressure drop and dangerous.
4.5.1.2 Measures should be taken to ensure that the system can not because the control power source (electricity, liquid or gas) is turned down or pressure fluctuations or drops
(Expected or unexpected) and dangerous.
All components and parts 4.5.1.3 response systems installed to protect the contents exceeding the maximum working pressure.
4.5.1.4 Each system components, including piping layout should be easily accessible, safe and reliable adjustment, maintenance and disassembly. Should be measures to ensure the demolition
The liquid does not have a greater loss of unloading.
4.5.1.5 Pipeline should not be retained foreign body (such as scale, burrs, chips, etc.). Means the system should have controlled medium cleanliness (such as over
Filter) to ensure that the function of the device and the device is safe and reliable. Cleanliness system shall comply with the relevant standards.
4.5.1.6 pipeline design and installation should prevent the use of the pedal as a ladder and can not be used to support parts and components. In any case the tube
On the road and fittings not act Rally.
4.5.1.7 In addition to the fixed pipeline should be fixed at both ends, but in the longer pipeline must add a fixed point and fixed securely to avoid vibration or shift
move. Measures should be taken to prevent damage or harm caused by thermal expansion.
4.5.1.8 outer wall of the pipe must not welded fasteners, connectors or other parts.
4.5.1.9 Fixed demand valve should be installed fixed to the molding machine body, valve plates and other objects, are not allowed to rely on only the pipe support.
4.5.1.10 For the pipe assembly may have caused danger to the wrong connections should be marked on the pipe. Whether hard tube and
The hose should be able to install any kind of protection for the foreseeable damage (especially hoses layout should give full consideration to be burning hot metal may
Sex), should not prevent the element adjustment, maintenance and replacement, should not hinder the work and operation of the molding machine of the molding machine.
4.5.1.11 manufacture pressure vessels according to relevant state regulations for the implementation of the pressure vessel. Pressure vessel is forbidden to carry out any machining
Modification work, welding or other measures.
4.5.1.12 shatterproof glass and plastic containers should be protected.
4.5.2 hydraulic system and the accumulator
4.5.2.1 All hydraulic components (including seals, filter elements, etc.) should be compatible with the system applied in the hydraulic medium. In order to avoid the
The reason appears to hydraulic medium incompatibility issues, the need for system-dependent protective layer and other liquids (such as paints, lubricants, etc.) and
It may be in contact with the materials of construction and installation materials (such as cables, hoses and non-operating items, etc.) to take additional precautions.
4.5.2.2 hydraulic system should have good cooling capacity, the system should be installed with a heat exchanger, when the oil temperature exceeds 55 ℃ should be able to automatically
Alarm, reaching 60 ℃ should be able to automatically shut down.
4.5.2.3 In the design of the hydraulic system, to ensure the safe release of the remaining hydraulic energy measures should have.
4.5.2.4 contains a hydraulic accumulator hydraulic circuit, when the device is stopped, the accumulator pressure should automatically unloading or accumulators can be safely
atresia.
NOTE. In special cases, when the device is disconnected after the hydraulic pressure is required, may not have to meet this requirement. But it should be added to the accumulator or in a prominent position near the
To prompt note, the same description of the specification and the need to use the hydraulic system shown in the figure.
4.5.2.5 and pressure accumulator elements connected thereto, to deal with the liquid side of the high pressure, corrosion and impact may suffer high temperature
Of protective measures. In special cases excessive pressure on the gas side also need protection.
4.5.2.6 with accumulator hydraulic device should be installed warning signs, such as "Note. Before you begin maintenance work should pressure relief devices."
4.5.2.7 accumulator installation location should be easily accessible for maintenance. Pressure accumulator and all relevant elements should be firmly fixed, security
reliable.
4.5.2.8 on the accumulator should give the following logo on the label or the accumulator.
--- "Warning. pressure vessels, before removing the oil discharge";
--- Rated inflation pressure;
--- "Just as the Charging Medium" (such as nitrogen).
4.5.2.9 should specify requirements for maintaining security in the accumulator operating instructions, including at least the following.
--- Press accumulator method recommended by the manufacturer of the gas filling pressure testing and regulation, which required careful not to exceed the allowable pressure
Force in each regulation and examination does not allow gas discharge;
--- Before removing it from the accumulator means for maintenance, liquid and gas pressure should be reduced to zero;
--- Allow only trained personnel in accordance with the technical guidance documents and drawings using predetermined effective manufacturing while having a certificate of
Maintenance, installation, removal under the conditions of parts and materials, replacement parts;
--- Continued use of the accumulator assembly and acceptance testing shall accumulator manufacturer or authorized personnel.
4.5.3 pneumatic system
4.5.3.1 pneumatic system should be used in gas-water separators and filters to prevent moisture and solid particles into the control system. Necessary means
Let mist lubrication pair element control system for lubrication, to minimize unstable operation hazards.
4.5.3.2 exhaust air control system should not produce hazardous gases, used in the muffler exhaust vent should not be in danger.
Security requirements 4.6 pairs of noise and vibration
4.6.1 Measures should be taken to make noise radiation hazards molding machine is minimized.
4.6.2 The vent valve should be used muffler.
4.6.3 pipeline phase and should not be arranged in contact with each other to prevent noise and unusual sound.
4.6.4 Noise limits for various types of molding machine should meet the technical requirements of their product standards.
4.6.5 Measures should be taken so that the molding machine vibration can cause injury and health effects minimized.
4.7 Additional security requirements
4.7.1 Design of molding machine parts should make certain parts of the body may cause hazards by nipping minimized. Avoid body ministries
Bit squeezed minimum spacing should meet the requirements of GB 12265.3.
4.7.2 molding machine should be designed to take advantage of the safe distance to prevent the installation and layout of human limbs to reach the danger zone, guards should also be guaranteed
safe distance. Safety distances to prevent danger zones being reached limbs should be consistent with GB 23821 and other relevant standards.
4.7.3 shall be so dangerous molding machine parts due to breakage, caused by loose or falling minimize this by design, reliable fixed or cover
Cover be guaranteed.
4.7.4 In addition to the table - plate outside the danger zone, for other possible collision, pinch, involvement, parts thrown sand jet or thermal noise
Radiation and other dangerous areas, should also be provided with protective devices. For only the danger area in case of contact will occur, can also be set to block
Means (such as coated with a yellow chain isolated, isolation railings, etc.) to draw attention to security personnel.
4.7.5 Since the potential energy or kinetic energy to make molding machine parts or unexpected movement of the piston may occur on their own, they should stop or locking set
mechanism.
4.7.6 In the case of multiplayer action, should provide security guards for each auxiliary operator. Security guards should be able to meet their operation
For the required range of security and safety hold time requirements.
4.7.7 When repairing or replacing the machine, adjust the plate may cause injury related to sports bodies should be provided with a power source (electrical, hydraulic or pneumatic)
Cutting device.
4.7.8 molding machine should be centralized lubrication. If there is no possibility of doing so should ensure that all lubrication mechanism can have parking during molding machine
Effect next stop conditions. Automatic lubrication system working conditions (including pressure problems and insufficient amount of lubricating oil) should display,
Once the system failure, the duty cycle of the machine should automatically stop.
4.8 Other Requirements
4.8.1 Oil pressure molding machine used in the instructions for use should be clearly defined. Fire safety requirements of hydraulic medium should be described. Simultaneously,
Recommended application of hydraulic medium should be described by the model and performance, and not just by the pressure medium to the producer or brand name
determine.
4.8.2 molding machine abrasive water-soluble lubricant should be used when using a mold lubricant oil, pay attention to fire prevention, and should use instructions
It will be described.
Electromagnetic compatibility 4.8.3 molding machine should be consistent with the provisions of GB 5226.1-2008 4.4.2.
4.8.4 When asked staff at the table - work within the danger zone plate or other areas likely to suffer harm (such as adjusting, test
Car, maintenance, lubricants, etc.), if the security guard molding machine used in the production of the test can not guarantee that use, then the machine in addition to normal
External security measures should be provided with extra or additional preventive measures and tools, or to provide security guarantees from the power source control.
Work Platforms 4.8.5 molding machine should comply with GB 20905-2007 in Chapter 11.
4.8.6 shall take appropriate measures possibility of the formation of health-damaging dust, harmful substances, or inhalation of mist and smoke control. when necessary
Dust emissions should provide means and take personal protective measures, and should be described in the instructions for use.
4.8.7 molding machine design should fully consider lifting and transportation security, should be provided with reliable and lifting method used for lifting objects. Start
Lifting and transportation process may have to move to live parts fall should be a reliable fixed measures shall be specified in the instructions for use.
4.8.8 Instructions shall be provided that safety rules, should at least include. operation, adjustment, repair, maintenance, inspection, troubleshooting, replacement
Installation and commissioning plate type, pressure test, test, handling and other aspects of the safety instructions.
4.8.9 Instructions shall specify periodic inspection of the pressure vessel.
4.8.10 instruction manual shall state machine requires the use of space and air to circulate.
4.8.11 instruction manual should explain the principles of plate manufacture and maintenance requirements. Template should make it safe by design.
5 Safety requirements and/or measures of determination
5.1 General
Molding machine is in Chapter 4 of the safety requirements and/or measures in line according to the following four methods to be determined. Depending on the security requirements
The nature and/or measures, should follow the method of determining the order of priority, the former method can not be implemented or the case can not be determined, allowing the press
The latter method is determined, in turn. Each safety requirements and/or measures required at least a method for determining when a particular safety requirements and/or
When the measures have a variety of methods can be determined, it should be the result of several methods to determine the match.
5.2 dete...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 25491-2010_English be delivered?Answer: Upon your order, we will start to translate GB 25491-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB 25491-2010_English with my colleagues?Answer: Yes. The purchased PDF of GB 25491-2010_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|