CN201662689U

CN201662689U - Fixing film manufactured by utilizing differential-temperature drawing and stroking processing technology

Info

Publication number: CN201662689U
Application number: CN2010201269224U
Authority: CN
Inventors: 刘江
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-04
Filing date: 2010-03-04
Publication date: 2010-12-01
Anticipated expiration: 2020-03-04

Abstract

The utility model discloses a fixing film manufactured by utilizing a differential-temperature drawing and stroking processing technology, which comprises a stainless steel basic layer, wherein a heat-resisting parting layer is sintered on the surface of the stainless steel basic layer. The stainless steel basic layer is produced through a differential-temperature drawing and stroking processing mould, and the differential-temperature drawing and stroking processing mould is in the forms of cooling a punch head and heating a punch die. The heat-resisting parting layer is polytetrafluorethylene resin or silica gel or fluorine rubber. The parting layer is in a multilayer structure and can be in a combined multilayer structure of a polytetrafluorethylene resin layer, a silica gel layer and a fluorine rubber layer. After the technical scheme is adopted, the stainless steel basic layer is formed by adopting differential-temperature multistage drawing and stroking processing, the quality, the thermal efficiency, the durability and the stability of a product are all quite excellent, and the requirement of short current high-speed printing and preheating time is satisfied.

Description

A kind ofly utilize differential temperature to stretch to smooth out with the fingers the photographic fixing film that process technology is made

Technical field:

The utility model relates to and a kind ofly utilizes differential temperature to stretch to smooth out with the fingers the photographic fixing film that process technology is made.

Background technology:

At imaging device, for example in copy, printer or the facsimile recorder, fixing device is according to the image information of expection, be used for by suitable imaging processing mechanism, for example electrophotographic method, electrostatic recording method or magnetic recording method heat/push/photographic fixing the unfixing toner that forms/support on the target object (transmission parts, sensitive film, dielectric coating sheet etc.).In recent years, in the image forming apparatus of electronic image mode, effectively utilize outside the resource, also require to improve the stability of device, guarantee high reliability, cut down operating cost in realization.The core part that influences the photographic fixing effect is the photographic fixing film in the fixing device.Be applied to PI (polyimide resin) base image-fixing film on the laser printer, be to be responsible for the lip-deep imaging carbon dust that does not also solidify of printer paper that is coated on that sends from toner cartridge is carried out the hot pressing melting and solidification, make the carbon dust melted by heat infiltrate printer paper inside, cooling curing.

Traditional photographic fixing film includes polyimide periosteum, nickel periosteum and spinning periosteum.

The polyimide periosteum is made by extrusion molding, and the periosteum external diameter that makes is φ 50mm, and long is 40mm, thickness is on the outside surface of 50 μ m, (MP-10) is coated with the thickness of dressing up 20 μ with electrostatic coating the PFA resin, with 860 ℃ of roastings, obtains the photographic fixing portion material of being made by the polyimide periosteum.This photographic fixing portion material as warm-up mill.

The production method of nickel periosteum is to be external diameter, and is long for the bar-shaped stainless steel metal mould of 50mm is placed on 3H energising in the nickel plating bath φ 50mm, generates the nickel Gold plated Layer of 50 μ m thickness.This gold-plated epithelium is extracted out from stainless steel metal mould cylindraceous, two end portions is done the cylinder of growth 40mm and just can be finished.At the nickel periosteum surrounded PFA collapsible tube that obtains like this, heating makes its even contraction, and obtaining the PFA layer thickness is the nickel periosteum of 25 μ m, as photographic fixing portion material.This photographic fixing portion material is used as warm-up mill.

The manufacture of spinning periosteum is, is φ 50mm at external diameter, and is long for outside the stainless steel metal mould of 450mm, inserting internal diameter equably is φ 50mm, and long is 150mm, and thickness is 0.2 stainless-steel seamless pipe, the stainless steel metal mould is installed on the lathe as axle, makes its rotation with the speed of 1000rpm.In the stainless-steel tube outside, set up the press roller of the bearing shape that makes with superhard alloy with rotation status, it is moved with even velocity continuously to length direction, make the steel pipe sheet, make the seamless stainless steel periosteum.Extract out from metal pattern, two ends are become accurately, obtain thick 50 μ m, internal diameter is φ 50mm, and length is the seamless stainless steel periosteum of 400mm.The sandblast outside surface of this spinning gained stainless steel membrane, make its asperitiesization after, use electrostatic coating, the PFA resin is covered into 20 μ m, with 360 ℃ of roastings, obtain photographic fixing portion material.This photographic fixing portion material as warm-up mill.

In above-mentioned three kinds of photographic fixing films, the polyimide periosteum thermal efficiency is very low, and permanance and stability are all poor; The nickel periosteum is owing to adopt the mode of electroplating to make, and its production efficiency is very low, and the electroplate liquid environmental pollution is serious during manufacturing; The spinning periosteum adopts accurate turner to make, and its production efficiency is equally also low, and the thickness homogeneity of products obtained therefrom is relatively poor.

Summary of the invention:

The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, provides that a kind of crudy, the thermal efficiency, permanance and stability are all extraordinary to be utilized differential temperature to stretch to smooth out with the fingers the photographic fixing film that process technology is made.

For achieving the above object, the technical scheme that the utility model provides is: a kind ofly utilize differential temperature to stretch to smooth out with the fingers the photographic fixing film that process technology is made, this photographic fixing film includes stainless steel basic unit, the heat-resisting release layer of sintering one deck on the surface of stainless steel basic unit.

Described stainless steel basic unit is stretched by differential temperature and smoothes out with the fingers processing mold production, and differential temperature stretches and smoothes out with the fingers processing mold and be the cooling drift, adds the form of hot die.

Described heat-resisting release layer is poly tetra fluororesin or silica gel or fluorine unpigmented rubber.

Described release layer is a sandwich construction, and it can be the combination sandwich construction of poly tetra fluororesin layer, layer of silica gel, fluorine unpigmented rubber layer.

After adopting technique scheme, stainless steel photographic fixing film adopts the differential temperature multistage stretching to smooth out with the fingers and processes, and the quality of product, the thermal efficiency, permanance and stability are all very outstanding, satisfies the short requirement of current flying print and preheating time.

Description of drawings:

Fig. 1 is the structural drawing of the utility model photographic fixing film;

Fig. 2 produces the structural drawing that processing mold is smoothed out with the fingers in differential temperature stretching of the present utility model;

Fig. 3 is that the punch die structure figure in the processing mold is smoothed out with the fingers in the differential temperature stretching;

Fig. 4 is the structural drawing of heating rotary test rig.

Embodiment:

This differential temperature stretches and smoothes out with the fingers the photographic fixing film that process technology is made, and this photographic fixing film includes stainless steel basic unit 1, the heat-resisting release layer 2 of sintering one deck on the surface of stainless steel basic unit 1.Described stainless steel basic unit is stretched by differential temperature and smoothes out with the fingers processing mold production, the structure of this mould as shown in Figure 2, punch die structure as shown in Figure 3, differential temperature stretches and smoothes out with the fingers processing mold for cooling off drift 111, the form that adds hot die 112, be processed with cooling water channel 113 in the drift 111, be provided with heating element 114 in the punch die 112.Described heat-resisting release layer 2 is poly tetra fluororesin or silica gel or fluorine unpigmented rubber.

Described release layer 2 is a sandwich construction, and it can be the combination sandwich construction of poly tetra fluororesin layer, layer of silica gel, fluorine unpigmented rubber layer.

The process velocity that drift 111 is compressed into punch die 112 is 10～1000mm/sec.Smoothing out with the fingers processing thickness is the following stainless steel cylinder of 0.1mm, and in the time of processing and forming, process velocity carries out comparatively suitable in the scope of 10～1000mm/sec.Process velocity surpasses 1000mm/sec, and the lubricant of supplying with drum surface is pure, toasts easily.In addition, the not enough 10mm/sec of process velocity owing to add the influence of the vibration of the mold in man-hour and punch press, be out of shape inhomogeneous, the axial thickness of the cylinder inequality that becomes.

The mould angle [alpha] (as shown in Figure 3) of going into of punch die is that 5 degree～9.5 degree are suitable.Learn that through experimental study in order to obtain smoothing out with the fingers the ultra-thin sheet material that processing produces, the modular angle degree of going into of punch die is important essential factor.That is to say that it is bigger than 9.5 degree to go into the modular angle degree, can produce excessive shear strength to the thin slice cylinder, and disrumpent feelings.One side goes into the modular angle degree and diminishes, and the extruding force of the punch die of cylinder trunk is become big, favourable the disrumpent feelings of thin slice cylinder that prevent, but go into modular angle degree less than 5.0 degree, because the punch die contact area of thin slice cylinder is excessive, can toast phenomenon.And vertically the power in press surface works superfluously, and punch press is difficult to separate with cylinder.Even generation is to the elastic expansion of the circumferencial direction of punch die, THICKNESS CONTROL difficulty.

It is as shown in table 1 below to adopt as shown in Figure 4 heating rotary test rig to measure the stretch physical property of the photographic fixing film smoothing out with the fingers processing and make, polyimide periosteum, nickel periosteum, four kinds of photographic fixing films of spinning periosteum of differential temperature:

Table 1

?	Permanance	Thermotolerance	Intensification	Comprehensively
					The utility model differential temperature stretches and smoothes out with the fingers the processing periosteum	◎?	◎?	○?	◎?
The polyimide periosteum	△?	△?	△?	△?
					The nickel periosteum	△?	○?	△?	△?
The spinning periosteum	◎?	△?	○?	△?

The test method of table 1 is as follows.At first, as shown in Figure 4, the heating rotary test rig contains the axle center and is configured to parallel to each other, interconnected backer roll 10 and warm-up mill 11.Backer roll 10 is covered with silica gel 13 at the outer peripheral face of aluminium core gold 12, constitutes thus.Warm-up mill 11 when inside is provided with planar heater 15 as heating arrangement, is provided with thermistor 16 as temperature-detecting device.And well heater 15 is by spring 17, and thermistor 16 is compressed on the inner peripheral surface of warm-up mill by shell fragment 18.

The planar heater 15 of warm-up mill 11 is 400W, sets at the thermistor 16 of warm-up mill inner peripheral surface according to contact and is controlled at 190 ℃.And, make warm-up mill 11 and backer roll 11 produce 10kg/cm ²Pressure.Allow backer roll 11 rotate with the speed of 200rpm under this state, warm-up mill 10 also is to this backer roll sense of rotation transmission rotation.Allow warm-up mill rotate continuously with this device, below the evaluation criterion of note expression compares separately.

Permanance: confirm to pipe (warm-up mill) distortion, break, wait the time till the unusual generation.◎: more than the 400H, zero: 300～400H, △: 200～300H thermotolerance: confirm pipe, with the variation of initial stage extension strength about the rotation test of carrying out 100H.

◎: no change, zero: 10～20% descends △: reduce intensification more than 20%: measure for the state from 25 ℃ of room temperatures, allow tube-surface be warming up to 190 ℃, required time.

◎: below 3 seconds, zero: 3～5 seconds, △: 5～7 seconds results according to table 1, it is very good as photographic fixing portion material that the stainless steel of affirmation embodiment is smoothed out with the fingers pipe.

The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.

Claims

1. one kind is utilized the differential temperature stretching to smooth out with the fingers the photographic fixing film that process technology is made, and it is characterized in that: this photographic fixing film includes stainless steel basic unit (1), the heat-resisting release layer of sintering one deck (2) on the surface of stainless steel basic unit (1).

2. according to claim 1ly a kind ofly utilize differential temperature to stretch to smooth out with the fingers the photographic fixing film that process technology is made, it is characterized in that: described heat-resisting release layer (2) is poly tetra fluororesin or silica gel or fluorine unpigmented rubber.

3. according to claim 1ly a kind ofly utilize differential temperature to stretch to smooth out with the fingers the photographic fixing film that process technology is made, it is characterized in that: described release layer (2) is a sandwich construction, and it can be the combination sandwich construction of poly tetra fluororesin layer, layer of silica gel, fluorine unpigmented rubber layer.