This standard specifies the requirements, acceptance rules, marking, packaging, transportation, storage, etc. of die casting molds, and is applicable to the design, manufacture and acceptance of non-ferrous metal die casting molds. GB/T 8844-2003 Technical conditions for die casting molds GB/T8844-2003 standard download decompression password: www.bzxz.net

This standard is a revision of (B/T83441688 Technical Conditions for Die Pressing) 2. Compared with H1841088, this standard has been modified as follows: three parts of the standard have been modified, and the following have been added: "Instructions for use" GBT8844-2003
Added 3.3 Mould parts and system parts and the materials selected should be in accordance with the corresponding brand of the technical standards! 1. The mold type parts have been adjusted! 1. The term "mold filling degree" has been unified into "mold filling degree" based on the batch standard. "Manufacturer" is "supplier", "orderer" is "customer", and the position of the position lamp has been redefined to make it more accurate; 5.5 "Qualitative inspection of quick quality" has been adjusted! The category has been eliminated, and the plane of the movable mold insert and the fixed mold and side panels have been unified. The requirement of flushness! The requirement of flushness between the push rod and the mold surface is cancelled. This standard is issued by the China Automotive Industry Association. This standard is issued by the National Die Standardization Technical Committee (CSBTS/TC331). The main drafters of this standard are: Yang Buling, Huang Zhidong, Changjin, Zhang Liangen, Weng Zhiyuan, Gan Andao, Ben Hongying, Feng Tafu. The standard was first issued in 2003 and revised for the first time in 2003. This standard reflects the requirements for die casting technology parts. The standard is applicable to the design of non-ferrous metal die casting dies and the acceptance of the standard. Reference documents GF1/T 884420C3
The killing effect of the text is the same as that of the standard or the anti-consumption of the article: the daily note is the same as that of the male, and all the lowering of the European and American (not paying the activity class) or the partial version are not flexible to use the public standard certificate, broadcast, and the double incentive is based on the standard certificate. The latest version of the foreign text is used for wood standards. The general tolerance is calculated according to the basic size of the grain.
/T1184-159 Quick Parts Note Tolerance Value G11/T1801-20GG Tolerance Unnoted Linear and Angular Sizes Tolerance GB/T4678.1--4675.192003J Die Casting 413 Parts Technical Requirements
3.1 Design Number Voucher Mold Should Use 6R/Part = 178.1-467819 Die Casting Parts 3.2 Mold Guide Forming Parts and Injection System Guide The selected materials should meet the technical standards of the tree. 3.3 The standard of the mold and mold parts of the injection molding system is shown in Table 1. Table
Specific product name
Core, reverse polarization, dynamic film specification block implementation benefits! Second, fast flow. Sex, wash mouth Li, fast release
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Floor heating HR:
For pressure holding selection, fast diameter, gold || tt||4f--65
About the period of application
3.4 ​​For the molded parts of zinc and galvannealing process, if the surface is to be treated with nitriding, the depth of the lacquer and nitriding layer shall be (,rm-35.. Hardness 60H
3.5 The geometric dimensions and surface properties of the mold parts shall meet the requirements of the drawings. 3.6 No cracks are allowed, and no scratches, damages and rust are allowed on the surface of the mold. 3. The inspection limit of the small size of the finished parts shall comply with the provisions of Table 2. Table 2
About
±5, 33
2:0 ~n
2-56~. .>
3.8 The maximum size of the molded parts shall comply with the provisions of Table 3. :x2~ 40r:
Party A please
3.9The angle and dimension tolerance of the parts shall comply with the provisions of our 1. The accuracy shall be agreed upon according to the dimension length. The angle tolerance shall be according to the angle
3.1℃The parts not specified in the specification shall be according to the specification. The connection comfort of the casting shall be more than the specified value. The maximum value of the maximum value of the casting wall shall be used for the maximum value of the casting wall. 1
GB/T 8844--20C3
The side length m of the pile body shall be according to the specified value. --18
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The core of the painting should be removed according to the provisions of the table. Table 6
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Lianshiquan
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2x-1 --5~.13
210r- 13
Jiaoning symbol medicine says that the mold slope is 10\~·15\ is suitable 1-.
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When the figure is marked with the degree of connection, the blood is still manufactured according to the reduced biological treatment direction, n3c
The teaching limit of the non-molding part should meet the GT certain, .-12
5n~12m
D'4 yuan
Xueweihaolai
-·251
Frequency nail installation holes, standard holes, hydrogen position etiquette, etc. The end of the etiquette etiquette is the extreme makeup inquiry of the bottom of the case /0·mother's determination. The size of the mold H part is too large because of the combustion effect of the shell GB: T196. The current determination of the selected public seat meets G315? Static regulations bZxz.net
Mould drawing annotation shape and position information
3.78 Mould parts.1. All parts that are not required to be adjusted should be used or reversed. The radius of the corner of the final molding part or the corner of the final molding part should be RU.5m, and the mold test should be carried out in accordance with the requirements of the parting surface or the center, the push and pull, etc. 4
General assembly technology requirements
Mold before the fixed, dynamic template installation surface flatness should meet the requirements of Table 7
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:-*69 25
2.2 child play, the fixed, dynamic seat installation surface of the weight should meet the requirements of 8: 2
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The diameter is
2- uy.~1 (ec
Guide, guide sleeve has a length standard
General for some positions
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4.3 In the position of the table mold, the reset rod surface should be close to the contact surface of the table. There is no more than 10C5mr. before the gap GH/T8844—2003
The position is fixed
-1: -2.
4.4 All movable parts of the mold should be positioned correctly, and the movements should be smooth. There should be no sub-deadlock phenomenon, and the fixed parts should not move relatively closely.
4.5 The reverse connection of the flow should be smooth, and the feeder should be not demoulding. The slope should be not less than 5. The surface torsion increase R.4 should be guaranteed. 4.6 The movement of the slider should be smooth. The rear edge block and the clamping block of the mold should be pressed tightly. The area should be different. The rear limit of the lower mold should be correct.
4. The split surface should be in the same shape after the mold is closed. If there is a gap between the parts, it should not be more than Cmm (except for exhaust) 4.8 The final waterway should be unobstructed, and no lubrication is allowed. The water inlet and outlet should be L. There are obvious marks. The tool should be equipped with lifting rings and spring nails to ensure safe lifting. The mold should be stable when lifting and low-profile. 5 Acceptance 5.1 The inspection should include: 1) Appearance inspection: 2) Inspection according to material heat treatment requirements: 3) Inspection of mold and castings: 4) Quality stability inspection 5.2 The mold supplier should inspect the appearance and size of the mold parts and the entire mold according to the mold markings and height conditions 5.3 The supplier should inspect the mold parts according to the heat treatment requirements 5.4 After completing 5.3 and 3.3 daily inspections, the mold can be tested. The trial machine should meet the requirements and the materials used should be consistent with the requirements of the parts drawing. The trial production should be stopped and the factory process should be maintained. The mold and the moving parts are flexible, stable, reliable, and reliable. The cooling water circuit is changed to the hydraulic oil circuit and the bottle is not leaking. The exhaust fluid is good and there is no flying end phenomenon.
5.5 After the mold is tested, it should be continuously tested for 5-1 minutes. After the mold strength and strength are confirmed to be qualified, the mold strength can be delivered to the customer with the mold. 5.6 According to the production batch of its quality inspection: 3 (00 molds are 1000, the gold content is 1500, and the copper alloy is 15U. Unless otherwise agreed by the mold supplier and the original customer: the above work should be completed within one month after receiving the inspected mold. The inspection period is completed, that is, this work is completed, 5.7. During the qualitative inspection, customers should be careful to check the material and technical conditions of the parts, heat treatment and surface treatment. If any quality problems are found, the manufacturer can solve them. 6. Marking, packaging, transportation and storage
61. Mark the bottom of the tool in an obvious place on the non-working surface. The marking section includes the following contents: contact number, date of delivery, name of the tool, etc. 6.2. Before delivery, all surfaces of the parts should be cleaned. The rust-proof agent 63. The molds shipped out of the factory should be packed according to the requirements of the transportation to prevent flow and stop taxation, so as to ensure that the molds are intact during normal transportation.
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