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GB/T 8845-2017Dies and moulds—Terminology (English PDF)

模具 术语

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

July 12, 2017

Implementation date

February 1, 2018

Scope

GB/T 8845-2017 is the English-translated version of 模具 术语.

GB/T 8845-2017 is the Chinese national vocabulary for dies and moulds. It defines the general terms of the field and then the terms proper to stamping dies, plastic moulds, die-casting moulds, forging dies, powder metallurgy dies, drawing dies, extrusion dies, roll dies, glass moulds, rubber moulds, ceramic moulds and casting moulds.

Each entry gives the term and its definition, often with the class of mould it belongs to and a pointer to the figures of the standard, and the entries cover the mould itself, templates, mould bases and cavity plates, cores and mandrels, sliders, wedges and guides, sprue bushes and the ejection mechanism.

It is written for anyone who has to understand and use the common terms of mould making. It replaces GB/T 8845-2006, was issued on 12 July 2017 and has applied since 1 February 2018.

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Document preview — GB/T 8845-2017

National Standard of the People's Republic of China

ICS
01.040.25; 25.120.10; 25.120.20; 25.120.30
Classification
J 46
Replacing
GB/T 8845-2006

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • 1 Scope
  • 2 Terms and definitions

1 Scope

This standard defines common terms for molds. It consists of general terms and die, plastic die, die-casting die, forging die, powder metallurgy die, drawing die, extrusion die Composed of terms such as pressure mold, roll mold, glass mold, rubber mold, ceramic mold, and casting mold.

This standard applies to the understanding and use of common terms used in molds.

2 Terms and definitions

2.1 General terms

2.1.1 Mould

Process equipment for shaping (forming) materials into products and parts with specific shapes and sizes. Including. die, plastic mold, die casting mold, Forging die, powder metallurgy die, drawing die, extrusion die, roll die, glass mold, rubber mold, ceramic mold, casting mold and other types.

2.1.1.1 Die

A mold for separating, forming or joining metal, non-metal sheet materials or profiles under pressure into products or parts. Including. blanking die, drawing Deep die, bending die, progressive die, fine blanking die, trimming die, etc.

2.1.1.2 Plastic mold

The molten plastic raw materials are filled into the cavity under pressure, and solidified and formed into molds for products and parts. Including. injection mold, compression mold, Injection molds, extrusion molds, blow molds, thermoforming molds, foaming molds, etc.

2.1.1.3 Die casting mold

The liquid metal fills the cavity quickly under pressure, and cools and solidifies the mold (see Figure 15).

2.1.1.4 Forging die

A mold for forming a metal blank into a blank or part under pressure. Including. hammer forging die, mechanical press forging die, screw press forging Die, hydraulic forging die, flat forging die, etc.

2.1.1.5 Powder metallurgy mold

The metal and non-metal powders are formed or formed into molds for blanks and parts through powder metallurgy. Including. pressing mold, isostatic pressing mold, Injection mold, extrusion mold, shaping mold, etc.

2.1.1.6 Drawing die

The metal blank is extended and deformed through the die hole under the action of tensile force into a mold for products and parts such as bars, wires, wires, profiles, parts, etc.

Including. steel drawing dies, cemented carbide drawing dies, diamond drawing dies, diamond coating drawing dies, ceramic drawing dies, etc.

2.1.1.19 Fixed compression mold

The upper and lower molds are fixed on the working table of the molding equipment, and all the molding processes are performed on the compression molds on the molding equipment.

2.1.1.20 Mobile injection mold

The upper and lower molds are not fixedly connected to the molding equipment, and the processes of loading, mold clamping, mold opening, and unloading are moved outside the working table of the molding equipment The injection mold (see Figure 92).

2.1.1.21 Fixed injection mould

The upper and lower molds are fixed on the working table of the molding equipment, and all the molding processes are performed on the molding equipment.

2.1.1.22 Co-extrusion die

Different molding materials are used, and two or more extruders are respectively used for plasticizing and melting, forming an extrusion die of the same profile.

2.1.1.23 Multi-cavity extrusion die

In the same mold, two (species) or more than two (species) extrusion molds are formed at the same time.

2.1.1.24 Metal mold

< Plastic mold> Hot forming molds made of metal materials, mainly aluminum alloy molds, zinc alloy molds, low melting point alloy molds, etc.

2.1.1.25 Metal mold

< Ceramic mold> A ceramic mold made of metal materials.

2.1.1.26 Forming die

< Die> A die for plastically deforming a sheet (blank) to shape products or parts.

2.1.1.27 Forming die

< Forging die> A flat forging die for upsetting the blank into a desired shape.

2.1.1.28 Punching die

< Die> is used to separate out the blanking die with closed inner contour products and parts.

2.1.1.29 Punching die

< Forging die> Cut off the inner skin of the part hole to make it a die for the through hole (see Figure 17).

2.1.1.30 Plastic mold

Correct the part to make its shape, size and precision meet the requirements of the mold (see Figure 36, Figure 37).

2.1.1.31 Impression mold

The mold used to press concave and convex prints on the surface of the part.

2.1.1.32 Smart mold

Moulds with functions of perception, analysis, decision-making, and control.

2.1.1.33 Multifunctional mold

Integrated mold (forming), connection, assembly and other functions.

2.1.1.34 Formwork

< Roller die> is used to install the combination of die roll and anvil roll.

2.1.1.35 Formwork

< Punch die, forging die, powder metallurgy die, glass mold> a combination of guide device and die seat or seat plate, template and other parts (see Figure 84 Middle 2).

2.1.1.35.1 Standard formwork (universal formwork)

The structure type and size are standardized, serialized, and the mold base is composed of a complete set of interchangeable parts.

2.1.1.35.2 Quick change mold base

By replacing the convex and concave molds and positioning elements, etc., the requirements for completing different forming processes and producing products and parts of various specifications can be quickly made. Responsive formwork.

2.1.1.36 Template

A collective term for the plate-shaped parts that make up the mold.

2.1.1.37 Mold base

< Die, Forging Die, Extrusion Die, Ceramic Die> Mainly used to install, fix and support the mold parts of the mold parts, including the upper mold base and the lower mold Seat, convex mold seat, female mold seat, etc. (see 1, 3 in Figure 21, 1, 5 in Figure 53, 5 in Figure 102).

2.1.1.38 Mold base

< Glass mold> The part used for supporting and positioning the mold and connecting with the machine in the vessel mold (see 7 in Figure 83).

2.1.1.39 Base plate

< Glass mold> A plate-shaped part that fixes the mold on the tempering furnace (see 1 in Figure 87).

2.1.1.40 Base plate

< Plastic molds, powder metallurgy molds, rubber molds, casting molds> Mainly used to install, fix and support mold parts of the mold base parts. Including above Mould base, lower mold base or fixed mold base, movable mold base, etc.

2.1.1.40.1 Upper die seat plate

< Plastic mold, powder metallurgy mold, rubber mold> A plate-shaped part that fixes the upper mold on the working table of the molding equipment (see 1 in Figure 9).

2.1.1.40.2 Upper die seat plate

< Casting mold> Plate-shaped parts used to install, fix and support the upper mold body (see 8 in Figure 108).

2.1.1.40.3 Lower mold seat plate

< Plastic mold, powder metallurgy mold, rubber mold> The plate-shaped part that fixes the lower mold on the working table under the molding equipment (see 10 in Figure 9)

2.1.1.50 Die cutting edge

< Forging die> The working part of the trimming die that plays the role of shearing.

2.1.1.51 Die

< Plastic mold, powder metallurgy mold, rubber mold> At the exit of the die head, the parts on the outer surface of the molded profile [see Figure 11a) 1, Figure 94, 2].

2.1.1.52 Die

< Glass mold> Used for molded products, parts of the mouth of the product (see 4 in Figure 80).

2.1.1.53 Cavity plate

Plate-shaped parts with molded surfaces. Including upper model cavity plate, lower model cavity plate or fixed model cavity plate, moving model cavity plate (see 2 in Figure 8, 13 in Figure 93, 1, 4 in Figure 101).

2.1.1.54 Perforated plate

At the entrance of the die runner, the spiral motion of the material in the extruder barrel is converted into a linear motion and a porous part that supports the filter screen (see Figure 11a), 7 and Figure 94, 7].

2.1.1.55 Preformed board

Forming the runners in the preforming zone, the parts of the preformed profile shape [see Figure 11a) 2, Figure 95, 9].

2.1.1.56 Prestressed ring

A round sleeve-shaped part that is installed on the outside of the die and is interference fit with the die to increase its strength (see 12 in Figure 53).

2.1.1.57 Holder ring

< Punch Die> In the drawing die or forming die, the part that presses the edge of the sheet to adjust the flow resistance of the material and prevent wrinkles.

2.1.1.58 Holder ring

< Plastic mold> A part that is pressed around the plastic blank for molding and demolding.

2.1.1.59 Hold down ring

< Powder metallurgy mold> The parts that press the punch, die, mandrel or guide post (see 11 in Figure 27).

2.1.1.60 Hold down ring

< Rubber mold> A ring-shaped part used to fix a die or forming ring (see 4 in Figure 94).

2.1.1.61 Locating ring

Determine the installation position of the mold on the injection machine, and ensure that the injection machine nozzle and the mold sprue sleeve are centered in the ring part (see 23 in Figure 8).

2.1.1.62 Positioning sleeve

< Plastic mold, rubber mold> The ring-shaped parts that play a positioning role in the connection between the die head and the extruder [see Figure 11a) 8].

2.1.1.63 Positioning sleeve

< Roller die> The ring-shaped part that positions the die roller.

2.1.1.64 Sprue bush

< Plastic molds, powder metallurgy molds, rubber molds, casting molds> gating system parts with sprue channels (see 22 in Figure 8 and 18 in Figure 34)

2.1.1.65 Sprue bush

< Die-casting mold> A round sleeve-shaped part forming a sprue (see 18 in Figure 15).

2.1.1.66 Diverter cone (diverter shuttle)

It is used for the taper parts in the mold gating system or the extrusion die that play a role of flow splitting [see Figure 11a), 9 in Figure 94, 8].

2.1.1.67 Shunt bracket

The parts that fix the shunt cone or mandrel [see 4 and 5 in Figure 11a), 5 in Figure 94].

2.1.1.68 Plunger

In the injection molding, the pressure of the molding equipment is transferred, so that the plastic melt in the feeding cavity is injected into the cylindrical parts of the cavity (see Figure 10, 2, Figure 92 Middle 3).

2.1.1.69 Exhaust plug

Parts with micro-shaped holes or grooves used to discharge gas in a cavity.

2.1.1.70 Core

Convex parts used for the shape and size of the inner surface of molded products and parts (see 13 and 14 in Figure 8, 29 in Figure 15, 6, in Figure 34, and Figure 93 Middle 16).

2.1.1.71 Thread core

Used for internal threaded parts of molded products and workpieces.

2.1.1.72 Threaded ring

Used for external threads of molded products and parts.

2.1.1.73 Mandrel

Formed (formed) products, working parts on the inner surface of the workpiece [see 11 in Figure 11a), 5 in Figure 27, and 1 in Figure 94].

2.1.1.74 Mandrel

< Extrusion Die> When the hollow part is being extruded, it forms a rod-shaped part that forms a ring-shaped inlet with the die (see 4 in Figure 47).

2.1.1.75 Mandrel

< Rolling mold> In the split roll, the shaft parts that fix the roll body and transmit torque (see 1, 3 in Figure 73).

2.1.1.82 Mold sleeve

A frame-sleeve-shaped part that press-fits and positions the formed (formed) part [see 3 in Fig. 28, No. 1 in Fig. 40a) and No. 6 in Fig. 56].

2.1.1.83 Fixed plate

Plate-shaped parts used to fix working parts, push out and reset parts, and guide parts. Including punch fixing plate, female mold fixing plate, core solid Fixed plate, push rod fixing plate, etc. (see 9 in Figure 4, 5 and 10 in Figure 8, 22 in Figure 15, 1, 6, 10 in Figure 27, 19 in Figure 93, and 2 in Figure 104).

2.1.1.84 Bracket plate

Plate-shaped parts for fixing the mandrel (see 1 in Figure 35).

2.1.1.85 Limit nail

The parts that support and adjust the ejection mechanism and prevent it from being hindered by foreign objects when resetting (see Figure 8 in 12, Figure 15 in 26, Figure 12 of 34).

2.1.1.86 Limit block

Block parts that limit stroke or position (see 18 in Figure 8, 2, 5 in Figure 15, 1, in Figure 28, 8, in Figure 93, and 11 in Figure 108).

2.1.1.87 Distance rod

When the mold is opened, the rod-shaped part that restricts a certain template to move only within a specified distance (see 18 in Figure 10 and 9 in Figure 93).

2.1.1.88 Pull hook

Hook-shaped parts that hold the cavity to delay the mold opening during the mold opening stroke (see 14 in Figure 10).

2.1.1.89 Tie rod

< Die> A rod-shaped part that is fixed to the upper die base and transmits the discharge force to the pallet.

2.1.1.90 Tie rod

< Plastic mold> The rod-shaped part that pulls the hook during the mold opening stroke to end the delayed mold opening (see 17 in Figure 10).

2.1.1.91 Lock

< Die casting mold> The part that keeps the mold in the closed state (see 36 in Figure 15).

2.1.1.92 Lock

< Forging Die> In order to prevent mis-movement when hitting, the concave and convex matching structure is set on the upper and lower dies.

2.1.1.93 Lock block

< Rubber mold> is used to lock the drum mold when the tire blank is formed.

2.1.1.94 Lock block

< Casting mold> Parts used for mold installation, fixing and locking (see 22 in Figure 108).

2.1.1.95 Oblique wedge

< Die, forging die> Wedge-shaped parts used to change the pressure or direction of movement.

2.1.1.96 Oblique wedge

< Roller die> A wedge-shaped part used to adjust the distance between the upper and lower roller seats (see 8 in Figure 74).

2.1.1.97 Wedge block

With a wedge angle, it is used to wedge the parts of the slider when clamping the mold (see 20 in Figure 8, 8, in Figure 15, and 11 in Figure 93).

2.1.1.98 Slider

< Die> is a part that reciprocally slides along the changed direction of movement under the action of a wedge.

2.1.1.99 Slider

< Plastic mold, die-casting mold, powder metallurgy mold, rubber mold> Sliding along the guide structure, driving the movable core or insert to complete the core pulling and forming (forming Type) and reset action parts (see 7 in Figure 15).

2.1.1.100 Slider

< Tire Mould> Install the blocks and transmit the power from the guide ring during the opening and closing of the mold (see 8 in Figure 96).

2.1.1.101 Oblique slider

It is a part that cooperates with the inclined surface to slide, and usually has the functions of forming, pushing out and core pulling.

2.1.1.102 Side core slider

The side core and the sliding block are made of integral materials as an integral sliding part (see 19 in Figure 8 and 10 in Figure 93).

2.1.1.103 Guides

Plate-shaped parts for clamping and guiding.

2.1.1.104 Slider guide

It is a plate-shaped part that cooperates with the sliding guide surface of the slider and plays a sliding role (see 6, in Figure 15 and 11 in Figure 96).

2.1.1.105 Chute guide

It is a plate-shaped part that has an oblique guide groove for core pulling and resetting movement of the slider along with the groove.

2.1.1.106 Wear plate

Plate-shaped parts with high hardness or lubricating properties installed on the sliding surface (see 7 in Figure 96).

2.1.1.107 Support plate

It can enhance the rigidity of the movable mold and bear the forming pressure of the plate-shaped parts (see 6 in Figure 8, 7 in Figure 34, and 6 in Figure 93).

2.1.1.108 Support column

The pressure-bearing parts (see 11 in Fig. 10, 39 in Fig. 15 and 13 in Fig. 34) are provided to enhance rigidity.

2.1.1.122 Launch agency

The structure that allows products and parts to escape the cavity, including push rods, push tubes, push blocks, push plates, push parts plates, reset rods, first reset mechanisms, etc.

2.1.1.122.1 Push rod (top rod)

< Glass mold> The rod-shaped parts or components used in the vessel mold to form the bottom and push out the products or parts (see Figure 83, 6).

2.1.1.122.2 Push rod (top rod)

< Die, plastic die, die-casting die, forging die, powder metallurgy die, extrusion die, rubber die, casting die> used to push out products, parts, residual materials or coagulation Material rod-shaped parts (see 24 in Fig. 15, 1 in Fig. 34, 4 in Fig. 53, 16 in Fig. 93, 1 in Fig. 105, 7).

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 152 pages — is available in the English PDF.

Referenced standards

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Editions of GB/T 8845

EditionTitleRevisionStatus
GB/T 8845-2017Dies and moulds—Terminologycurrent editionCurrent
GB/T 8845-2006Dies and moulds—Terminologyprevious editionSuperseded

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