Jiazhan (Dalian) Intelligent Equipment Technology Co., Ltd

Common problems and causes in the•★♣' production of rubber products

Jul 24,2023

Common problems and causes in the production of rubber products

Any product has its own∞↓± defects, and rubber proφΩ'↕ducts are no exception, mainly m ™≤φanifested in the lack o÷•δf glue in the product✘£₹♦; The glue edge is too t→∞₹σhick, and the product is overweight; Cu"↕rling, pumping edge; Crac≈☆σk; Bubble; Tearing ofΩ✘÷ molded products; The product i'ε×€s too rough.

So, what are the causes and sε'φolutions for the defects of these rΩ÷§ubber products. The foll φowing small series will expla☆♦in them one by one.

1. Lack of rubber products for rubber ×>÷☆products

The main reasons are:

Insufficient single consumption or i> nsufficient glue loading of sem≠☆•λi-finished products; The plate ris♥→es too fast, and the rubberΩ δ material does not flow Ω÷£$sufficiently; The mold cannot®γ→ seal the rubber material; Poor mold e>♠→xhaust conditions; Tπ↔he mold temperature γ is too high.

It can be solved from these±← aspects:

Determine the amount of glue in t♦♦↑he mold from scratch; Slow down t"€£ he plate ascent and deflate rep₹‍<♦eatedly; Improve mold desi>∏βgn; Reduce mold temperatu®™£re and speed up operation; Low>‌er the mold temperatα↕ure.

2. The rubber edge of the r✘←↕ubber product is too thick, and •€the product is overweight

The main reasons are: excessive glue lγ<∑oading; insufficient p©$✔₹late pressure; The mold does n≥ €ot have a corresponding residual tank→↔←.

It can be solved from these✘¶♥< aspects: strictly control the u♠☆‍nit consumption of semi-finished α$‍products; Increase plate preε∏ssure; Improve mold design.

3. Rubber products a€"×‍re rolled and drawn

The main reasons are: poor process'Ωing performance of r§₽™✘ubber materials.

It can be solved from these aspec÷✔♠ts: the use of casting and inj→™ection methods to produce Moo&×→♠ney viscosity to reduce the rubber mat★∏₹÷erial.

4. Cracks in rubber pγ↕≥roducts

The main reasons are§♠φ≥: dirty glue; Excessive release a™✘ gent; Scorched compound.

It can be solved from these a‌"spects: ensuring the cleanliσ ∏ness of semi-finished pr' oducts; rational use of isolate• s; Extend the scorch tim≠≠®×e.

5. Bubbles of rubber products

The main reasons are: the su₹λbstance containing vulcanized dec☆Ωomposition gas in the compound is not c∞€‍αompletely vented during processing; Thσ∏"e mold has no gas line.

It can be solved from th≤ ese aspects: repeated deflating beforeδ" mold closing, and the mold‌ ✘→ adds an exhaust line; Calci ₽←♣um oxide is added to the f‍₩↕✔ormula

6. Rubber products are torn out↑±π of molded products

The main reasons are: ¶✔↔£too much or too little isolate; The m ≈¥old is opened too quickly an‍♠ ₩d the force is uneven; Poor fluidity of₩≤ rubber and poor adhesion of semi-finis≤>hed products; The mold angle≈α§✔ and chamfer are unreasonab"‍le.

It can be solved fro♠←×m these aspects: reasona★¥ble use of isolation agent, ≤↑± uniform force of the product ₽<§←when opening the mold, reducing t ₹¥πhe door viscosity of♣¥← the rubber material, and improving the φ< mold design.

7. Rubber products are to •←≥o rough

The main reasons are: rou₩α↔>gh mold surface; The s₹γα corching time of the c>‍₹ompound is too short.≤♥

It can be solved from th±•÷ese aspects: cleaning the mold; Ext₹≠end the scorch time.

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