Mold design for the assembly injection molding of a solid housing with integrated dynamic seal

Frick, Achim; Spadaro, Marcel

doi:10.1002/pen.24766

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…When the amount of lubricating oil leakage exceeds the volume that the system can compensate, it will cause an unbalanced pressure inside and outside the tool, and the drilling fluid will penetrate the seals, contaminate the internal environment. [3][4][5] Therefore, it is necessary to analyze the sealing performance of the wellbore trajectory control tool, calculate the amount of lubricating oil leakage, determine the continues working time of the tool, and to guide the lubricant replenished.…”

Section: Introductionmentioning

confidence: 99%

Wellbore trajectory control tool seal system leakage analysis based on steady gap flow

Shi

Wang

Feng

et al. 2020

Advances in Mechanical Engineering

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Lubricant leakage will inevitably occur during the working process of wellbore trajectory control tools. Even including the lubricant compensation system, serious leakage will still cause lacks lubrication of the internal mechanical structure as well as electronic system damaged by external infiltration fluid, especially when it comes to battery sub and other electronic equipment. Seal system leakage prediction method was presented based on the assumption of steady gap flow. It is assumed that there is a constant gap between the lip seal and the rotating shaft, the gap height is determined by oil film thickness, and the length of the gap was determined by the contact analysis using the Mooney–Rivlin constitutive model. The analysis results show that the contact length between the primary seal lip and the rotary shaft is about 0.1 mm under the condition of ensuring the contact between the deputy seal lip and the rotary shaft. The overall lubricant leakage finite element analysis model was established, and the relationship between the internal lubricant pressure of the tool and the total leakage was obtained. The results of analysis indicate that under the internal pressure of 0.03 MPa, the lubricant leakage is approximately 6 mL/h, which was verified by experiments.

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Section: Introductionmentioning

confidence: 99%

Wellbore trajectory control tool seal system leakage analysis based on steady gap flow

Shi

Wang

Feng

et al. 2020

Advances in Mechanical Engineering

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“…Therefore, the optimization of the process parameters is recognized to be more feasible and efficient. Frick and Spadaro presented one mold design method with efficient manufacturing and studied the influence of processing parameters in assembly injection molding on the bonding strength, soft component properties. Su and Gilchrist discovered that the demolding force decreased as mold temperature increased and as the part substrate thickness also increased.…”

Section: Introductionmentioning

confidence: 99%

Optimization strategy of the multihole products weld lines based on the multi‐objective evaluation system and kriging surrogate model

Wang

Chen

2018

Polymer Engineering & Sci

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The plastic multihole products are widely used in Household Appliance and Automobile industry. The densely distributed weld lines resulting from the multiaperture structure seriously damage the surface appearance and mechanical properties of the products. However, there are relatively few studies on the optimization of weld lines of the plastic multihole products. Therefore, a multihole plate was taken as an example to exploit an optimization strategy for this kind of defects. The multi‐objective evaluation system was established to assess bonding quality of weld lines based on Numerical Simulation. And a multi‐objective optimization methodology was presented to efficiently optimize the process parameters. First, back propagation neural networks and Kriging method were combined to build the surrogate models based on the experiments arranged by Latin hypercube sampling. Second, a systematic test strategy was proposed to ensure high accuracy of the surrogate model. Then, the pareto optimal solution was obtained by integrating the surrogate model and Non‐dominated Sorting Genetic Algorithm II. Finally, the simulated and practical confirmation experiments indicate that bonding quality of weld lines can be effectively characterized and significantly improved by the multi‐objective evaluation system and the multi‐objective optimization methodology, respectively. POLYM. ENG. SCI., 59:781–790, 2019. © 2018 Society of Plastics Engineers

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Mold design for the assembly injection molding of a solid housing with integrated dynamic seal

Cited by 2 publications

References 30 publications

Wellbore trajectory control tool seal system leakage analysis based on steady gap flow

Wellbore trajectory control tool seal system leakage analysis based on steady gap flow

Optimization strategy of the multihole products weld lines based on the multi‐objective evaluation system and kriging surrogate model

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