Gud Mould Industry Limited

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In full-process management of plastic parts projects, design-stage control is crucial to subsequent implementation of in...
08/04/2026

In full-process management of plastic parts projects, design-stage control is crucial to subsequent implementation of injection molding processes and product quality. Design for Manufacturability (DFM) review is core control method during design stage. According to industry statistics, 80% of mold problems originate from design defects. Introducing DFM review early in product design process can directly reduce project development costs by 30%, while laying a solid foundation for stability and yield (target ≥95%) in mass production stage.

In full-process management of plastic parts projects, design-stage control is crucial to subsequent implementation of injection molding processes and product quality. Design for Manufacturability (…

See Figure 1 for face shell products of medical therapeutic instruments. Maximum dimensions of product are 198.00 mm * 1...
21/05/2024

See Figure 1 for face shell products of medical therapeutic instruments. Maximum dimensions of product are 198.00 mm * 156.00 mm * 48.00 mm; average thickness of plastic part is 2.00 mm, material of plastic part is ABS, shrinkage rate is 1.005, and weight of plastic part is 172.60 grams. Technical requirements for plastic parts are that there should be no defects such as peaking, underfilled injection molding, flow lines, pores, warping deformation, silver streaks, cold material, and jetting lines, and meet ROSH environmental protection requirements.

See Figure 1 for face shell products of medical therapeutic instruments. Maximum dimensions of product are 198.00 mm * 156.00 mm * 48.00 mm; average thickness of plastic part is 2.00 mm, material o…

Car door panel is an important part of car interior parts. It is located on the inside of car door. It is divided into f...
20/05/2024

Car door panel is an important part of car interior parts. It is located on the inside of car door. It is divided into front, rear, left and right. It varies according to car series, usually two-door and four-door. These parts are collectively called door panel series. This article takes left rear door panel of a car as an example to explain key points and experience in designing injection molds for car door panels.

Car door panel is an important part of car interior parts. It is located on the inside of car door. It is divided into front, rear, left and right. It varies according to car series, usually two-do…

Among automobile structural parts, air-conditioning housing is a representative product of relatively complex products. ...
18/05/2024

Among automobile structural parts, air-conditioning housing is a representative product of relatively complex products. Today we will take air conditioner shell as an example to analyze design of its mold structure, which is of great practical reference value for everyone.

Among automobile structural parts, air-conditioning housing is a representative product of relatively complex products. Today we will take air conditioner shell as an example to analyze design of i…

1. Action principle and design points of oblique pin blockIt uses mold opening action of molding to make inclined pin an...
17/05/2024

1. Action principle and design points of oblique pin block
It uses mold opening action of molding to make inclined pin and slider move relative to each other, so that slider moves along mold opening direction and horizontal direction to separate undercuts. As shown below:

1. Action principle and design points of oblique pin block It uses mold opening action of molding to make inclined pin and slider move relative to each other, so that slider moves along mold openin…

There are many common plastic modification technologies, mainly reinforcement technologies, including fiber reinforcemen...
16/05/2024

There are many common plastic modification technologies, mainly reinforcement technologies, including fiber reinforcement, self-reinforcement, and molecular reinforcement; toughening technology; filling modification; blending and plastic alloy technology; flame retardant technology; nanocomposite technology; reaction grafting modification; aging resistance; functional modification, including conductive, antistatic, thermal conductive and luminescent, etc.; thermoplastic elastomer technology.

There are many common plastic modification technologies, mainly reinforcement technologies, including fiber reinforcement, self-reinforcement, and molecular reinforcement; toughening technology; fi…

Injection molding machine is one of commonly used equipment in plastic processing industry. It usually has to work for a...
15/05/2024

Injection molding machine is one of commonly used equipment in plastic processing industry. It usually has to work for a long time. Therefore, how to ensure that injection machine works normally and stably in continuous production is a matter worthy of attention and attention for both manufacturer and user of injection machine. From user’s perspective, regular preventive maintenance is an effective way to ensure normal operation of injection machine on premise of correctly selecting injection machine model.

Injection molding machine is one of commonly used equipment in plastic processing industry. It usually has to work for a long time. Therefore, how to ensure that injection machine works normally an…

Structure of plastic part is shown in Figure 1. Length is 374mm, outer diameter of small end is φ51mm, wall thickness is...
14/05/2024

Structure of plastic part is shown in Figure 1. Length is 374mm, outer diameter of small end is φ51mm, wall thickness is 2mm, aspect ratio is 7.3:1, shape is slender, and bilateral slope along axis is 0.25°. Inner diameter of small end of plastic part is φ36mm, and there are 6 protrusions on the inner surface of small end. Three long grooves with a width of 7mm are evenly distributed on the outer surface of plastic part. There is a groove-shaped hole inside one of long grooves, and there are two depressions on both sides of long groove. There are two square holes near small end of plastic part, with a size of 28mm*20mm. Angle between cross-section center lines of two square holes is 120°. Buckle positions ① and ② are located at both ends of square hole. There are several ribs on outer cylindrical surface of large end of plastic part. There are two difficulties in mold design: first, square hole, buckle position ①, and buckle position ② are close to each other, so an independent demoulding mechanism cannot be designed, and a linkage demoulding mechanism must be designed; second, ejection distance of long core-pulling mechanism is relatively long. Considering molding accuracy, long core cannot be extracted from plastic part at one time, and a non-standard ejection mechanism needs to be designed.

Structure of plastic part is shown in Figure 1. Length is 374mm, outer diameter of small end is φ51mm, wall thickness is 2mm, aspect ratio is 7.3:1, shape is slender, and bilateral slope along axis…

Figure 1 shows a car dashboard skeleton. Material is PP+LGF20. Process requires physical foam injection molding. There a...
13/05/2024

Figure 1 shows a car dashboard skeleton. Material is PP+LGF20. Process requires physical foam injection molding. There are 4 inserts in airbag frame area of dashboard skeleton, which are placed in corresponding areas by a robot when mold is open. During production process of this plastic part, bulges often occur in corresponding area of insert. As shown in Figure 2, some parts are soft due to insufficient cooling, and are propped up by physical foaming to form bulges. In order to verify above point of view, cooling time was extended from 30s to 52s in terms of process, and bulging no longer appeared in corresponding area. Based on this, breakthrough direction for improving appearance defects of plastic parts is to improve cooling effect of corresponding area.

Figure 1 shows a car dashboard skeleton. Material is PP+LGF20. Process requires physical foam injection molding. There are 4 inserts in airbag frame area of dashboard skeleton, which are placed in …

Problem: Industry ExistingWhat problems does clamping force of injection molding machine directly affect?What are reason...
12/05/2024

Problem: Industry Existing
What problems does clamping force of injection molding machine directly affect?
What are reasons for broken column of injection molding machine and how to repair it?
How to solve problem of product size being thick on one side and thin on the other?
How to solve persistent problem of rough edges?
Why do I need to repair my crank regularly?
Injection molding machine product consistency problem?
Existing problems in domestic injection molding industry

Problem: Industry Existing What problems does clamping force of injection molding machine directly affect? What are reasons for broken column of injection molding machine and how to repair it? How …

Problem: Industry ExistingWhat problems does clamping force of injection molding machine directly affect?What are reason...
12/05/2024

Problem: Industry Existing
What problems does clamping force of injection molding machine directly affect?
What are reasons for broken column of injection molding machine and how to repair it?
How to solve problem of product size being thick on one side and thin on the other?
How to solve persistent problem of rough edges?
Why do I need to repair my crank regularly?
Injection molding machine product consistency problem?
Existing problems in domestic injection molding industry
Precision of injection molded products is not high, and high-precision products need to be produced with imported equipment.

Product Recommendation|Analysis and Solutions of Clamping Force Problems

When parts are cut, in order to facilitate withdrawal of tool and ensure that contact surfaces of relevant parts are tig...
09/05/2024

When parts are cut, in order to facilitate withdrawal of tool and ensure that contact surfaces of relevant parts are tight during assembly, undercut groove or grinding wheel overtravel groove should be pre-machined at the step of machined surface.

Common hole size injection method (blind hole, threaded hole, counterbore, countersink hole); chamfer size injection method.

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No 2, Unit 7 Lane, Maiyuan Road, Xin'an District, Chang'an Town, Dongguan City
Dongguan
523880

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+8615938722402

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