The package used has two types: heat sealing type and self-adhesive type of the cover tape: heat sealing type includes high-temperature upper tape and low-temperature upper tape, 1030 and 7008 are low-temperature heat sealing type, and the color is transparent; 1040 and 7007 are high temperature heat sealed, and the color is fog.
The self-adhesive type includes t50vp fog self-adhesive type and t50vp-c

Transparent self-adhesive. In the production process, common appearance defects generally include: barb, poor forming, burr Heating mark convex (deviation), crease, whitening, deformation, P2 value, thin side wall, thin bottom, white pressing, different color of leather, scratch, scratch, stripe on the surface, barb, heating mark convex (deviation), burr, scratch and deformation shall be the main control, and other appearance defects shall be the secondary control.

(1) barb is mainly based on the trial assembly of parts, which is acceptable without affecting the trial assembly of parts.

(2) The heating trace shall not coincide with the sealing and welding joint of the upper belt and shall not protrude from the surface of the material belt.

(3) the burr at the hole position shall not fall on the hole position or block the hole position.

(4) there shall be no white trace after scratching on the surface or side of the material tape.

The code recognition of the product in the engineering drawing:

(1) w – represents the bandwidth;

(2) A0 – represents the length of the bottom of the groove;

(3) B0 represents the bottom width of the slot;

(4) d represents the diameter of the regular round side hole;

(5) D1 represents the diameter of the middle hole;

(6) D2 represents the diameter of the elliptical side hole;

(7) e represents the distance (width) from the horizontal bisector of the regular round side hole to the upper boundary of the regular round side hole;

(8) F represents the distance from half of the whole slot to the horizontal line of the positive circular side hole;

(9) K0 represents the depth of the slot (second level depth);

(10) K1 represents the first level depth of the slot;

(11) P0 represents the distance between the vertical bisectors of two adjacent side holes;

(12) P represents the distance between the two-phase slots and the entire slot bisector;

(13) P2 represents the distance between the entire slot bisector of any slot and the vertical bisector of the adjacent side holes on both sides;

(14) T represents the thickness of the strip; T2 represents the thickness of the bottom after the strip is formed.